HID: intel_ish-hid: Add check for ishtp_dma_tx_map

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[ Upstream commit b3d40c3ec3 ]

As the kcalloc may return NULL pointer,
it should be better to check the ishtp_dma_tx_map
before use in order to avoid NULL pointer dereference.

Fixes: 3703f53b99 ("HID: intel_ish-hid: ISH Transport layer")
Signed-off-by: Jiasheng Jiang <jiasheng@iscas.ac.cn>
Acked-by: Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
Signed-off-by: Sasha Levin <sashal@kernel.org>

...

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Jiasheng Jiang 2022-11-22 21:48:23 +08:00 • committed by Greg Kroah-Hartman

parent bd04fcc35d

commit 9a65e90179

1 changed files with 10 additions and 0 deletions

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drivers/hid/intel-ish-hid/ishtp/dma-if.c

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