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| author | Alexander Shishkin <alexander.shishkin@linux.intel.com> | 2016-03-04 17:16:31 +0300 |
|---|---|---|
| committer | Alexander Shishkin <alexander.shishkin@linux.intel.com> | 2016-04-08 16:11:55 +0300 |
| commit | 6575cbd67172bbcbfbb50ddd854d2b90c9f4e358 (patch) | |
| tree | afb171b15a3e11db7aaa847384753fe0a4c22741 /drivers/hwtracing/intel_th | |
| parent | 8f1127ea09a7bfe7e1b5fab5b7f52bd56f2d1bf5 (diff) | |
| download | linux-6575cbd67172bbcbfbb50ddd854d2b90c9f4e358.tar.xz | |
intel_th: msu: Handle kstrndup() failure
Currently, the nr_pages attribute store does not check if kstrndup()
succeeded. Fix this.
Reported-by: Alan Cox <alan.cox@intel.com>
Signed-off-by: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Reviewed-by: Laurent Fert <laurent.fert@intel.com>
Diffstat (limited to 'drivers/hwtracing/intel_th')
| -rw-r--r-- | drivers/hwtracing/intel_th/msu.c | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/drivers/hwtracing/intel_th/msu.c b/drivers/hwtracing/intel_th/msu.c index d9d6022c5aca..747ccf84bd93 100644 --- a/drivers/hwtracing/intel_th/msu.c +++ b/drivers/hwtracing/intel_th/msu.c @@ -1393,6 +1393,11 @@ nr_pages_store(struct device *dev, struct device_attribute *attr, do { end = memchr(p, ',', len); s = kstrndup(p, end ? end - p : len, GFP_KERNEL); + if (!s) { + ret = -ENOMEM; + goto free_win; + } + ret = kstrtoul(s, 10, &val); kfree(s); |