um: Remove unneeded variable 'ret'
Fix the following coccicheck warning: ./arch/um/drivers/hostaudio_kern.c:125:10-14: Unneeded variable: "mask". Return "0" on line 131 Reported-by:Abaci Robot <abaci@linux.alibaba.com> Signed-off-by:
Yang Li <yang.lee@linux.alibaba.com> Signed-off-by:
Richard Weinberger <richard@nod.at>
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