swiotlb: Fix the type of index
authorClaire Chang <tientzu@chromium.org>
Thu, 22 Apr 2021 08:14:53 +0000 (16:14 +0800)
committerKonrad Rzeszutek Wilk <konrad.wilk@oracle.com>
Tue, 27 Apr 2021 17:03:20 +0000 (17:03 +0000)
commit95b079d8215b83b37fa59341fda92fcb9392f14a
treef7330bb0dc76936d76320524d0f80c06dbe4ea4c
parent2726bf3ff2520dba61fafc90a055640f7ad54e05
swiotlb: Fix the type of index

Fix the type of index from unsigned int to int since find_slots() might
return -1.

Fixes: 26a7e094783d ("swiotlb: refactor swiotlb_tbl_map_single")
Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Claire Chang <tientzu@chromium.org>
Signed-off-by: Konrad Rzeszutek Wilk <konrad@kernel.org>
kernel/dma/swiotlb.c