]> git.baikalelectronics.ru Git - kernel.git/commit
projects / kernel.git / commit
? search:
summary | shortlog | log | commit | commitdiff | tree
(parent: 4901656) | patch
net: axienet: Check for DMA mapping errors
authorAndre Przywara <andre.przywara@arm.com>
Tue, 24 Mar 2020 13:23:40 +0000 (13:23 +0000)
committerDavid S. Miller <davem@davemloft.net>
Tue, 24 Mar 2020 23:33:04 +0000 (16:33 -0700)
commitfa23177f49d218394a15c960392c39ac58894401
treebf079aae1a3707d2cd2b95ffc9a5c76f878d3f3atree | snapshot
parent49016569edd7ff554d78257a7280c560afa8c29fcommit | diff
net: axienet: Check for DMA mapping errors

Especially with the default 32-bit DMA mask, DMA buffers are a limited
resource, so their allocation can fail.
So as the DMA API documentation requires, add error checking code after
dma_map_single() calls to catch the case where we run out of "low" memory.

Signed-off-by: Andre Przywara <andre.przywara@arm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
drivers/net/ethernet/xilinx/xilinx_axienet_main.c diff | blob | history
Linux Kernel Source Tree.