| commit | e71f5cc402ecb42b407ae52add7b173bf1c53daa | |
| author | Naga Chumbalkar <nagananda.chumbalkar@hp.com> | |
| Wed, 14 Sep 2011 23:22:23 +0000 (14 16:22 -0700) | ||
| committer | Linus Torvalds <torvalds@linux-foundation.org> | |
| Thu, 15 Sep 2011 01:09:38 +0000 (14 18:09 -0700) | ||
| tree | 03e1b260a42a59e3fea1a3db4f39a9a260dd0a58 | treesnapshot (tar.gz zip) |
| parent | 88cee8fd77af28d414b983798dd30c8950c71e31 | commitdiff |
drivers/cpufreq/pcc-cpufreq.c: avoid NULL pointer dereference
per_cpu(processors, n) can be NULL, resulting in:
Loading CPUFreq modules[ 437.661360] BUG: unable to handle kernel NULL pointer dereference at (null)
IP: [<ffffffffa0434314>] pcc_cpufreq_cpu_init+0x74/0x220 [pcc_cpufreq]
It's better to avoid the oops by failing the driver, and allowing the
system to boot.
Signed-off-by: Naga Chumbalkar <nagananda.chumbalkar@hp.com>
Cc: Dave Jones <davej@codemonkey.org.uk>
Cc: Len Brown <lenb@kernel.org>
Cc: <stable@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
per_cpu(processors, n) can be NULL, resulting in:
Loading CPUFreq modules[ 437.661360] BUG: unable to handle kernel NULL pointer dereference at (null)
IP: [<ffffffffa0434314>] pcc_cpufreq_cpu_init+0x74/0x220 [pcc_cpufreq]
It's better to avoid the oops by failing the driver, and allowing the
system to boot.
Signed-off-by: Naga Chumbalkar <nagananda.chumbalkar@hp.com>
Cc: Dave Jones <davej@codemonkey.org.uk>
Cc: Len Brown <lenb@kernel.org>
Cc: <stable@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
| drivers/cpufreq/pcc-cpufreq.c | diffblobblamehistory |