tree 6d137dfd82e8f36f39bbd80a9a1197103bc49d8f
parent 086c28ab7c5699256aced0049aae9c42f1410313
author Jiasheng Jiang <jiasheng@iscas.ac.cn> 1657009593 +0300
committer Greg Kroah-Hartman <gregkh@linuxfoundation.org> 1657287775 +0200

intel_th: msu-sink: Potential dereference of null pointer

The return value of dma_alloc_coherent() needs to be checked.
To avoid use of null pointer in sg_set_buf() in case of the failure of
alloc.

Fixes: f220df66f676 ("intel_th: msu-sink: An example msu buffer "sink"")
Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: Jiasheng Jiang <jiasheng@iscas.ac.cn>
Signed-off-by: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Link: https://lore.kernel.org/r/20220705082637.59979-3-alexander.shishkin@linux.intel.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>