History log of /drivers/input/misc/hp_sdc_rtc.c
Revision Date Author Comments
b64da05fb746c6ff5bcb9abeaa52684d1b08a2b9 19-Nov-2013 Dan Carpenter <dan.carpenter@oracle.com> Input: hp_sdc_rtc - unlock on error in hp_sdc_rtc_read_i8042timer()

The transaction task here is hp_sdc_tasklet() and it releases the lock.
The problem is if we aren't able to queue the transaction then we need
to release the lock ourselves.

Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
9b3a0a6f8ca7bdced15647a1ed5e07d86d58062c 05-May-2013 Al Viro <viro@zeniv.linux.org.uk> input: single_open() leak

Cc: stable@vger.kernel.org
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
c18bd9a1ff477bd010d7607a8e575da24de0b08b 10-Apr-2013 David Howells <dhowells@redhat.com> hp_sdc_rtc: Don't use create_proc_read_entry()

Don't use create_proc_read_entry() as that is deprecated, but rather use
proc_create_data() and seq_file instead.

Signed-off-by: David Howells <dhowells@redhat.com>
cc: Brian S. Julin <bri@calyx.com>
cc: Helge Deller <deller@gmx.de>
cc: linux-m68k@lists.linux-m68k.org
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
15fb9683c3e4eb1f8c6c982079a806b3894c2ba0 27-Feb-2013 Helge Deller <deller@gmx.de> parisc: check return value of down_interruptible() in hp_sdc_rtc.c

additionally comment out unused code (which may be used later)

Signed-off-by: Helge Deller <deller@gmx.de>
10d0ff83078d5ef99aaf94a2aaceb740f5ced923 07-Sep-2010 Thomas Gleixner <tglx@linutronix.de> input: Misc/hp_sdc_rtc: semaphore cleanup

Get rid of init_MUTEX[_LOCKED]() and use sema_init() instead.

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Christoph Hellwig <hch@infradead.org>
Acked-by: Dmitry Torokhov <dtor@mail.ru>
LKML-Reference: <20100907125054.888438853@linutronix.de>
613655fa39ff6957754fa8ceb8559980920eb8ee 02-Jun-2010 Arnd Bergmann <arnd@arndb.de> drivers: autoconvert trivial BKL users to private mutex

All these files use the big kernel lock in a trivial
way to serialize their private file operations,
typically resulting from an earlier semi-automatic
pushdown from VFS.

None of these drivers appears to want to lock against
other code, and they all use the BKL as the top-level
lock in their file operations, meaning that there
is no lock-order inversion problem.

Consequently, we can remove the BKL completely,
replacing it with a per-file mutex in every case.
Using a scripted approach means we can avoid
typos.

These drivers do not seem to be under active
maintainance from my brief investigation. Apologies
to those maintainers that I have missed.

file=$1
name=$2
if grep -q lock_kernel ${file} ; then
if grep -q 'include.*linux.mutex.h' ${file} ; then
sed -i '/include.*<linux\/smp_lock.h>/d' ${file}
else
sed -i 's/include.*<linux\/smp_lock.h>.*$/include <linux\/mutex.h>/g' ${file}
fi
sed -i ${file} \
-e "/^#include.*linux.mutex.h/,$ {
1,/^\(static\|int\|long\)/ {
/^\(static\|int\|long\)/istatic DEFINE_MUTEX(${name}_mutex);

} }" \
-e "s/\(un\)*lock_kernel\>[ ]*()/mutex_\1lock(\&${name}_mutex)/g" \
-e '/[ ]*cycle_kernel_lock();/d'
else
sed -i -e '/include.*\<smp_lock.h\>/d' ${file} \
-e '/cycle_kernel_lock()/d'
fi

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
af0d5cb908f7f9adeb5d3d3dbef64c644bb6809c 05-Jun-2010 Arnd Bergmann <arnd@arndb.de> hp_sdc_rtc: fix broken ioctl conversion

Commit 55929332c92 "drivers: Push down BKL into various drivers"
introduced a regression in hp_sdc_rtc, caused by a missing
change of the .unlocked_ioctl pointer to the newly introduced
function.

Fixes:

drivers/input/misc/hp_sdc_rtc.c:681: warning: initialization from
incompatible pointer type
drivers/input/misc/hp_sdc_rtc.c:665: warning:
‘hp_sdc_rtc_unlocked_ioctl’ defined but not used

Reported-by: Geert Uytterhoeven <geert@linux-m68k.org>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Acked-by: Geert Uytterhoeven <geert@linux-m68k.org>
Signed-off-by: Frederic Weisbecker <fweisbec@gmail.com>
55929332c92e5d34d65a8f784604c92677ea3e15 27-Apr-2010 Arnd Bergmann <arnd@arndb.de> drivers: Push down BKL into various drivers

These are the last remaining device drivers using
the ->ioctl file operation in the drivers directory
(except from v4l drivers).

[fweisbec: drop i8k pushdown as it has been done from
procfs pushdown branch already]

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Frederic Weisbecker <fweisbec@gmail.com>
3776989d2339c58ff8d8421e754603f186d7439b 18-Oct-2009 Roel Kluin <roel.kluin@gmail.com> Input: hp_sdc_rtc - fix test in hp_sdc_rtc_read_rt()

If left unsigned the hp_sdc_rtc_read_i8042timer() return value will not
be checked correctly.

Signed-off-by: Roel Kluin <roel.kluin@gmail.com>
Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
d2d23559857e5f34762c61487f8ffb2fa4d7442d 10-Oct-2009 Thomas Gleixner <tglx@linutronix.de> input: Remove BKL from hp_sdc_rtc

cycle_kernel_lock() was added during the big BKL pushdown. It should
ensure the serializiation against driver init code. In this case there
is nothing to serialize. Remove it.

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
LKML-Reference: <20091010153349.884891604@linutronix.de>
Cc: Geert Uytterhoeven <geert@linux-m68k.org>
Cc: Dmitry Torokhov <dtor@mail.ru>
233e70f4228e78eb2f80dc6650f65d3ae3dbf17c 01-Nov-2008 Al Viro <viro@ZenIV.linux.org.uk> saner FASYNC handling on file close

As it is, all instances of ->release() for files that have ->fasync()
need to remember to evict file from fasync lists; forgetting that
creates a hole and we actually have a bunch that *does* forget.

So let's keep our lives simple - let __fput() check FASYNC in
file->f_flags and call ->fasync() there if it's been set. And lose that
crap in ->release() instances - leaving it there is still valid, but we
don't have to bother anymore.

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
7477fb6fbc339469ea945e007f3f7b3bb13b25f7 13-Oct-2008 Geert Uytterhoeven <geert@linux-m68k.org> HP input: kill warnings due to suseconds_t differences

Kill compiler warnings related to printf() formats in the input drivers for
various HP9000 machines, which are shared between PA-RISC (suseconds_t is int)
and m68k (suseconds_t is long). As both are 32-bit, it's safe to cast to int.

Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
Acked-by: Helge Deller <deller@gmx.de>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
0f17e4c796e89d1f69f13b653aba60e6ccfb8ae0 24-Jul-2008 Matthew Wilcox <matthew@wil.cx> Add missing semaphore.h includes

These files use semaphores but don't include semaphore.h

Signed-off-by: Matthew Wilcox <willy@linux.intel.com>
Acked-by: Geert Uytterhoeven <geert@linux-m68k.org>
986f8b8ccf4806c1e95528a6f157998113fb4f41 20-May-2008 Arnd Bergmann <arnd@arndb.de> hp_sdc_rtc: BKL pushdown

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
eb98630ba02f6a23a2d202be082757a9e9940b2b 18-May-2008 Geert Uytterhoeven <geert@linux-m68k.org> m68k: Some input drivers do not check the platform

Some input drivers do not check whether they're actually running on the
correct platform, causing multi-platform kernels to crash if they are not.

Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2b8693c0617e972fc0b2fd1ebf8de97e15b656c3 12-Feb-2007 Arjan van de Ven <arjan@linux.intel.com> [PATCH] mark struct file_operations const 3

Many struct file_operations in the kernel can be "const". Marking them const
moves these to the .rodata section, which avoids false sharing with potential
dirty data. In addition it'll catch accidental writes at compile time to
these shared resources.

Signed-off-by: Arjan van de Ven <arjan@linux.intel.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
5d469ec0f40d65b2a0a704402990a43b2dafe197 07-Dec-2006 Neil Horman <nhorman@tuxdriver.com> [PATCH] Correct misc_register return code handling in several drivers

Clean up several code points in which the return code from misc_register is
not handled properly.

Several modules failed to deregister various hooks when misc_register fails,
and this patch cleans them up. Also there are a few modules that legitimately
don't care about the failure status of misc register. These drivers however
unilaterally call misc_deregister on module unload.

Since misc_register doesn't initialize the list_head in the init_routine if it
fails, the deregister operation is at risk for oopsing when list_del is
called. The initial solution was to manually init the list in the miscdev
structure in each of those modules, but the consensus in this thread was to
consolodate and do that universally inside misc_register.

Signed-off-by: Neil Horman <nhorman@tuxdriver.com>
Cc: Bjorn Helgaas <bjorn.helgaas@hp.com>
Cc: Kylene Jo Hall <kjhall@us.ibm.com>
Cc: Dmitry Torokhov <dtor@mail.ru>
Cc: Olaf Hering <olh@suse.de>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
6ce6b3aeeae75eee34670bcd42870ac839bfec4c 14-Oct-2006 Al Viro <viro@ftp.linux.org.uk> [PATCH] hp drivers/input stuff: C99 initializers, NULL noise removal, __user annotations

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
70c00ba0bbfb583e39b964ebd88620c18aa02c62 08-Jan-2006 Marcelo Tosatti <marcelo.tosatti@cyclades.com> [PATCH] small hp_sdc_rtc cleanup: use no_llseek

Use no_llseek function.

Signed-off-by: Marcelo Tosatti <marcelo.tosatti@cyclades.com>
Cc: "Brian S. Julin" <bri@calyx.com>
Acked-by: Vojtech Pavlik <vojtech@suse.cz>
Cc: Dmitry Torokhov <dtor_core@ameritech.net>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 17-Apr-2005 Linus Torvalds <torvalds@ppc970.osdl.org> Linux-2.6.12-rc2

Initial git repository build. I'm not bothering with the full history,
even though we have it. We can create a separate "historical" git
archive of that later if we want to, and in the meantime it's about
3.2GB when imported into git - space that would just make the early
git days unnecessarily complicated, when we don't have a lot of good
infrastructure for it.

Let it rip!