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authorChristophe JAILLET <christophe.jaillet@wanadoo.fr>2017-11-17 15:37:57 -0800
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2017-12-14 09:28:22 +0100
commite9672477a5f059e88e3c3b886c0a61253447254a (patch)
tree784dcd48cb6c110b4a48c885ce4c1f6c379a49e4 /drivers
parent007e20bd0fddd4fee4c6d9f897acbca55066c23b (diff)
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drivers/rapidio/devices/rio_mport_cdev.c: fix resource leak in error handling path in 'rio_dma_transfer()'
[ Upstream commit b1402dcb5643b7a27d46a05edd7491d49ba0e248 ] If 'dma_map_sg()', we should branch to the existing error handling path to free some resources before returning. Link: http://lkml.kernel.org/r/61292a4f369229eee03394247385e955027283f8.1505687047.git.christophe.jaillet@wanadoo.fr Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr> Reviewed-by: Logan Gunthorpe <logang@deltatee.com> Cc: Matt Porter <mporter@kernel.crashing.org> Cc: Alexandre Bounine <alexandre.bounine@idt.com> Cc: Lorenzo Stoakes <lstoakes@gmail.com> Cc: Jesper Nilsson <jesper.nilsson@axis.com> Cc: Christian K_nig <christian.koenig@amd.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> Signed-off-by: Sasha Levin <alexander.levin@verizon.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers')
-rw-r--r--drivers/rapidio/devices/rio_mport_cdev.c3
1 files changed, 2 insertions, 1 deletions
diff --git a/drivers/rapidio/devices/rio_mport_cdev.c b/drivers/rapidio/devices/rio_mport_cdev.c
index 9013a585507e..f32fc704cb7e 100644
--- a/drivers/rapidio/devices/rio_mport_cdev.c
+++ b/drivers/rapidio/devices/rio_mport_cdev.c
@@ -964,7 +964,8 @@ rio_dma_transfer(struct file *filp, u32 transfer_mode,
req->sgt.sgl, req->sgt.nents, dir);
if (nents == -EFAULT) {
rmcd_error("Failed to map SG list");
- return -EFAULT;
+ ret = -EFAULT;
+ goto err_pg;
}
ret = do_dma_request(req, xfer, sync, nents);