dma-buf: Check return value of anon_inode_getfile
dma-buf: Check return value of anon_inode_getfile

anon_inode_getfile might fail, so check its return value.

Signed-off-by: Tuomas Tynkkynen <30fc3ded6e3c6aeff59ef63918c5d2fdd91299f7@nvidia.com>
Signed-off-by: Sumit Semwal <d6930da0d649c01d063dcca4d796c2ac2cbb68ba@linaro.org>

KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs