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(parent: 4193769) | patch
staging: emxx_udc: Add checks for dma_alloc_coherent()
authorYuan Can <yuancan@huawei.com>
Thu, 19 Jan 2023 08:31:19 +0000 (08:31 +0000)
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>
Thu, 19 Jan 2023 13:23:47 +0000 (14:23 +0100)
commitf6510a93cfd8c6c79b4dda0f2967cdc6df42eff4
tree95982fbdfc0646d0e28ea2eb1e77e79a89d93b30tree | snapshot
parent4193769b6dfd7ddc5ec5e2ccae6458f4ba65797fcommit | diff
staging: emxx_udc: Add checks for dma_alloc_coherent()

As the dma_alloc_coherent may return NULL, the return value needs to be
checked to avoid NULL poineter dereference.

Signed-off-by: Yuan Can <yuancan@huawei.com>
Reviewed-by: Simon Horman <horms@verge.net.au>
Link: https://lore.kernel.org/r/20230119083119.16956-1-yuancan@huawei.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
drivers/staging/emxx_udc/emxx_udc.c diff | blob | history
ep93xx device tree rework repo: git://git.maquefel.me/linux.git