From 4e318d7c6c9dd5cdae48bcf61558bbc0c09b12ac Mon Sep 17 00:00:00 2001 From: Andi Kleen Date: Mon, 13 Oct 2008 12:03:03 +0200 Subject: [PATCH] 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 Cc: stable Signed-off-by: Greg Kroah-Hartman --- drivers/base/sys.c | 6 ++++-- 1 file changed, 4 insertions(+), 2 deletions(-) diff --git a/drivers/base/sys.c b/drivers/base/sys.c index 3ca9c5e8d765..c98c31ec2f75 100644 --- a/drivers/base/sys.c +++ b/drivers/base/sys.c @@ -488,7 +488,8 @@ ssize_t sysdev_store_ulong(struct sys_device *sysdev, 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 @@ ssize_t sysdev_store_int(struct sys_device *sysdev, 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); -- GitLab