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-rw-r--r--fs/fifo.c9
1 files changed, 4 insertions, 5 deletions
diff --git a/fs/fifo.c b/fs/fifo.c
index b1a524d798e7..cf6f4345ceb0 100644
--- a/fs/fifo.c
+++ b/fs/fifo.c
@@ -14,7 +14,7 @@
#include <linux/sched.h>
#include <linux/pipe_fs_i.h>
-static void wait_for_partner(struct inode* inode, unsigned int *cnt)
+static int wait_for_partner(struct inode* inode, unsigned int *cnt)
{
int cur = *cnt;
@@ -23,6 +23,7 @@ static void wait_for_partner(struct inode* inode, unsigned int *cnt)
if (signal_pending(current))
break;
}
+ return cur == *cnt ? -ERESTARTSYS : 0;
}
static void wake_up_partner(struct inode* inode)
@@ -67,8 +68,7 @@ static int fifo_open(struct inode *inode, struct file *filp)
* seen a writer */
filp->f_version = pipe->w_counter;
} else {
- wait_for_partner(inode, &pipe->w_counter);
- if(signal_pending(current))
+ if (wait_for_partner(inode, &pipe->w_counter))
goto err_rd;
}
}
@@ -90,8 +90,7 @@ static int fifo_open(struct inode *inode, struct file *filp)
wake_up_partner(inode);
if (!pipe->readers) {
- wait_for_partner(inode, &pipe->r_counter);
- if (signal_pending(current))
+ if (wait_for_partner(inode, &pipe->r_counter))
goto err_wr;
}
break;