b43: Fix possible NULL pointer dereference in DMA code

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This fixes a possible NULL pointer dereference in an error path of the
DMA allocation error checking code. This is also necessary for a future
DMA API change that is on its way into the mainline kernel that adds
an additional dev parameter to dma_mapping_error().

This patch moves the whole struct b43_dmaring struct initialization
right before any DMA allocation operation.

Reported-by: Miles Lane <miles.lane@gmail.com>
Signed-off-by: Michael Buesch <mb@bu3sch.de>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

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Michael Buesch 2008-06-12 11:58:56 +02:00 • committed by John W. Linville

parent 051c256f67

commit 028118a5f0

1 changed files with 32 additions and 33 deletions

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93

drivers/net/wireless/b43/dma.c

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