diff options
| author | Guennadi Liakhovetski <guennadi.liakhovetski@linux.intel.com> | 2021-03-15 19:39:32 +0300 |
|---|---|---|
| committer | Mark Brown <broonie@kernel.org> | 2021-03-16 16:25:46 +0300 |
| commit | 97f53046d746bef513d5fbaac53eedb011968407 (patch) | |
| tree | 9cbfdcfcb0e942f4e32af09aa47d24b263638d05 /sound/soc/sof/debug.c | |
| parent | 72c35856b5edc3f734be5699e9f6737190a1d897 (diff) | |
| download | linux-97f53046d746bef513d5fbaac53eedb011968407.tar.xz | |
ASoC: SOF: remove superfluous NULL check in debugfs read
When reading from IPC flood debugfs entries no need to check whether
.cache_buf is NULL - it's impossible since otherwise the initialisation
would have failed. This also fixes a klocwork reported issue:
passed to function and may be dereferenced there by passing argument 2
to function 'memcpy' at line 510.
sound/soc/sof/debug.c:510 | sof_dfsentry_read()
Reported-by: Keqiao Zhang <keqiao.zhang@intel.com>
Reviewed-by: Ranjani Sridharan <ranjani.sridharan@linux.intel.com>
Reviewed-by: Xiuli Pan <xiulipan@outlook.com>
Signed-off-by: Guennadi Liakhovetski <guennadi.liakhovetski@linux.intel.com>
Signed-off-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Link: https://lore.kernel.org/r/20210315163932.18663-4-pierre-louis.bossart@linux.intel.com
Signed-off-by: Mark Brown <broonie@kernel.org>
Diffstat (limited to 'sound/soc/sof/debug.c')
| -rw-r--r-- | sound/soc/sof/debug.c | 3 |
1 files changed, 1 insertions, 2 deletions
diff --git a/sound/soc/sof/debug.c b/sound/soc/sof/debug.c index 778c7d028493..a51a928ea40a 100644 --- a/sound/soc/sof/debug.c +++ b/sound/soc/sof/debug.c @@ -451,8 +451,7 @@ static ssize_t sof_dfsentry_read(struct file *file, char __user *buffer, dentry = file->f_path.dentry; if ((!strcmp(dentry->d_name.name, "ipc_flood_count") || - !strcmp(dentry->d_name.name, "ipc_flood_duration_ms")) && - dfse->cache_buf) { + !strcmp(dentry->d_name.name, "ipc_flood_duration_ms"))) { if (*ppos) return 0; |