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Commit 38b0774c authored by Guy Shapiro's avatar Guy Shapiro Committed by Greg Kroah-Hartman
Browse files

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
09368960

Signed-off-by: default avatarGuy Shapiro <guy.shapiro@mobi-wize.com>
Cc: linux-api@vger.kernel.org
Signed-off-by: default avatarSrinivas Kandagatla <srinivas.kandagatla@linaro.org>
Signed-off-by: default avatarGreg Kroah-Hartman <gregkh@linuxfoundation.org>
parent 93dc1774

drivers/nvmem/core.c

+1 −1
Original line number Diff line number Diff line
@@ -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;