staging: rts5208: fix missing error check on call to rtsx_write_register
[ Upstream commit c5fae4f4 ] Currently the check on error return from the call to rtsx_write_register is checking the error status from the previous call. Fix this by adding in the missing assignment of retval. Detected by CoverityScan, CID#709877 Fixes: fa590c22 ("staging: rts5208: add support for rts5208 and rts5288") Signed-off-by: Colin Ian King <colin.king@canonical.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Signed-off-by: Sasha Levin <alexander.levin@microsoft.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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