Remove the lock_kernel/unlock_kernel pair in the ioctl method. It plainly wasn't protecting anything. Signed-off-by: Matthew Wilcox <willy@parisc-linux.org> Signed-off-by: Kyle McMartin <kyle@parisc-linux.org>
@@ -444,7 +444,6 @@ static long perf_ioctl(struct file *file, unsigned int cmd, unsigned long arg)
uint32_t raddr[4];
int error = 0;
- lock_kernel();
switch (cmd) {
case PA_PERF_ON:
@@ -477,8 +476,6 @@ static long perf_ioctl(struct file *file, unsigned int cmd, unsigned long arg)
error = -ENOTTY;
}
- unlock_kernel();
-
return error;