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authorGuy Shapiro <guy.shapiro@mobi-wize.com>2017-09-11 11:00:11 +0200
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2017-09-18 16:12:26 +0200
commit38b0774c0598c7a54b8499d18c2b764c35dc94ab (patch)
tree75072e17f1b771355a271c3e0289801da5b5e773 /drivers/nvmem
parent93dc1774d2a4c7a298d5cdf78cc8acdcb7b1428d (diff)
nvmem: core: return EFBIG on out-of-range write
When writing data that exceeds the nvmem size to a nvmem sysfs file using the sh redirection operator >, the shell hangs, trying to write the out-of-range bytes endlessly. Fix the problem by returning EFBIG described in man 2 write. Similar change was done for binary sysfs files on commit 0936896056365349afa867c16e9f9100a6707cbf Signed-off-by: Guy Shapiro <guy.shapiro@mobi-wize.com> Cc: linux-api@vger.kernel.org Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/nvmem')
-rw-r--r--drivers/nvmem/core.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/nvmem/core.c b/drivers/nvmem/core.c
index de54c7f5048a..3866117bc285 100644
--- a/drivers/nvmem/core.c
+++ b/drivers/nvmem/core.c
@@ -135,7 +135,7 @@ static ssize_t bin_attr_nvmem_write(struct file *filp, struct kobject *kobj,
/* Stop the user from writing */
if (pos >= nvmem->size)
- return 0;
+ return -EFBIG;
if (count < nvmem->word_size)
return -EINVAL;

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