Messages in this thread Patch in this message | | | Date | Sat, 25 Jan 2014 22:47:44 +0100 | From | Christian Engelmayer <> | Subject | [PATCH] misc: genwqe: Fix potential memory leak when pinning memory |
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Fix a memory leak in the genwqe_pin_mem() error path as called by ioctl GENWQE_PIN_MEM. In case there is an error encountered when mapping memory, the already allocated dma_mapping struct needs to be freed correctly.
Detected by Coverity: CID 1162606.
Signed-off-by: Christian Engelmayer <cengelma@gmx.at> --- drivers/misc/genwqe/card_dev.c | 1 + 1 file changed, 1 insertion(+)
diff --git a/drivers/misc/genwqe/card_dev.c b/drivers/misc/genwqe/card_dev.c index 8f8a6b3..2c2c9cc 100644 --- a/drivers/misc/genwqe/card_dev.c +++ b/drivers/misc/genwqe/card_dev.c @@ -787,6 +787,7 @@ static int genwqe_pin_mem(struct genwqe_file *cfile, struct genwqe_mem *m) if (rc != 0) { dev_err(&pci_dev->dev, "[%s] genwqe_user_vmap rc=%d\n", __func__, rc); + kfree(dma_map); return rc; } -- 1.8.3.2
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