[PATCH RESEND v2 12/51] powerpc/rtas: consume the whole write to /proc/powerpc/rtas/progress

[Christian Brauner]

ppc_rtas_progress_write() shows the first 255 bytes of a write and
returns that many, so a writer that loops until everything is written
shows the rest as a second message. Return the whole count, the rest is
ignored.

Fixes: 1da177e4c3f4 ("Linux-2.6.12-rc2")
Signed-off-by: Christian Brauner (Amutable) <brauner@xxxxxxxxxx>
---
 arch/powerpc/kernel/rtas-proc.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/arch/powerpc/kernel/rtas-proc.c b/arch/powerpc/kernel/rtas-proc.c
index f38df72e64b8..89b165986851 100644
--- a/arch/powerpc/kernel/rtas-proc.c
+++ b/arch/powerpc/kernel/rtas-proc.c
@@ -311,6 +311,7 @@ static int ppc_rtas_poweron_show(struct seq_file *m, void *v)
 static ssize_t ppc_rtas_progress_write(struct file *file,
 		const char __user *buf, size_t count, loff_t *ppos)
 {
+	size_t len = count;
 	unsigned long hex;
 
 	if (count >= MAX_LINELENGTH)
@@ -324,7 +325,7 @@ static ssize_t ppc_rtas_progress_write(struct file *file,
 	hex = simple_strtoul(progress_led, NULL, 10);
 
 	rtas_progress ((char *)progress_led, hex);
-	return count;
+	return len;
 
 	/* clear the line */
 	/* rtas_progress("                   ", 0xffff);*/

-- 
2.53.0