mlx4_core: Fix possible bad free in mlx4_buf_free()

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When mlx4_buf_free() is called from the error path of
mlx4_buf_alloc(), it may be passed a buffer structure that does not
have all pages filled in.  Add a check for NULL to mlx4_buf_free() so
we avoid passing NULL to dma_free_coherent() (which will crash).

Signed-off-by: Ali Ayoub <ali@mellanox.co.il>
Signed-off-by: Jack Morgenstein <jackm@dev.mellanox.co.il>
Signed-off-by: Roland Dreier <rolandd@cisco.com>

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Ali Ayoub 2007-11-13 15:26:57 -08:00 • committed by Roland Dreier

parent 9418d5dc9b

commit 3bba11e5c4

1 changed files with 4 additions and 3 deletions

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7

drivers/net/mlx4/alloc.c

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