path: root/drivers/net/ethernet/i825xx
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authorArnd Bergmann <arnd@arndb.de>2017-09-05 10:10:09 +0200
committerChristoph Hellwig <hch@lst.de>2017-09-05 13:23:11 +0200
commitd35b0996fef3bfe76665e87bbff7d95c6807350a (patch)
tree1938ce180b8428314beb93fbcdfc2a7f29f5f796 /drivers/net/ethernet/i825xx
parentARM: imx: mx31moboard: Remove unused 'dma' variable (diff)
dma-coherent: fix dma_declare_coherent_memory() logic error
A recent change interprets the return code of dma_init_coherent_memory as an error value, but it is instead a boolean, where 'true' indicates success. This leads causes the caller to always do the wrong thing, and also triggers a compile-time warning about it: drivers/base/dma-coherent.c: In function 'dma_declare_coherent_memory': drivers/base/dma-coherent.c:99:15: error: 'mem' may be used uninitialized in this function [-Werror=maybe-uninitialized] I ended up changing the code a little more, to give use the usual error handling, as this seemed the best way to fix up the warning and make the code look reasonable at the same time. Fixes: 2436bdcda53f ("dma-coherent: remove the DMA_MEMORY_MAP and DMA_MEMORY_IO flags") Signed-off-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Christoph Hellwig <hch@lst.de>
Diffstat (limited to 'drivers/net/ethernet/i825xx')
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