This patch fixes a mutex locking bug causing userspace processes
to hang indefinitely upon reading the radio device for RDS data.
Signed-off-by: Nils Faerber <nils.faerber@xxxxxxxxxxxxxxxxx>
Acked-by: Tobias Lorenz <tobias.lorenz@xxxxxxx>
---
drivers/media/radio/si470x/radio-si470x-common.c | 1 -
1 files changed, 0 insertions(+), 1 deletions(-)
diff --git a/drivers/media/radio/si470x/radio-si470x-common.c
b/drivers/media/radio/si470x/radio-si470x-common.c
index 4c69698..41ee757 100644
--- a/drivers/media/radio/si470x/radio-si470x-common.c
+++ b/drivers/media/radio/si470x/radio-si470x-common.c
@@ -483,7 +483,6 @@ static ssize_t si470x_fops_read(struct file *file,
char __user *buf,
count /= 3;
/* copy RDS block out of internal buffer and to user buffer */
- mutex_lock(&radio->lock);
while (block_count < count) {
if (radio->rd_index == radio->wr_index)
break;
--
1.7.2.3
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