sysfs: Fix return values for sysdev_store_{ulong,int}
SYSFS: Fix return values for sysdev_store_{ulong,int}
Always return the full size instead of the consumed
length of the string in sysdev_store_{ulong,int}
This avoids EINVAL errors in some echo versions.
Signed-off-by: Andi Kleen <ak@linux.intel.com>
Cc: stable <stable@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
diff --git a/drivers/base/sys.c b/drivers/base/sys.c
index 3ca9c5e..c98c31e 100644
--- a/drivers/base/sys.c
+++ b/drivers/base/sys.c
@@ -488,7 +488,8 @@
if (end == buf)
return -EINVAL;
*(unsigned long *)(ea->var) = new;
- return end - buf;
+ /* Always return full write size even if we didn't consume all */
+ return size;
}
EXPORT_SYMBOL_GPL(sysdev_store_ulong);
@@ -511,7 +512,8 @@
if (end == buf || new > INT_MAX || new < INT_MIN)
return -EINVAL;
*(int *)(ea->var) = new;
- return end - buf;
+ /* Always return full write size even if we didn't consume all */
+ return size;
}
EXPORT_SYMBOL_GPL(sysdev_store_int);