From d0e68ce1999e34a29d6b71ced4088d0f916878d4 Mon Sep 17 00:00:00 2001 From: Heena Sirwani Date: Mon, 6 Oct 2014 17:04:43 +0530 Subject: [PATCH] Staging: iio: Documentation: Added check for sscanf return value. The following patch fixes the following checkpatch.pl warning by adding a check for sscanf return value. WARNING: unchecked sscanf return value. Signed-off-by: Heena Sirwani Acked-by: Daniel Baluta Signed-off-by: Greg Kroah-Hartman --- drivers/staging/iio/Documentation/lsiio.c | 10 ++++++++-- 1 file changed, 8 insertions(+), 2 deletions(-) diff --git a/drivers/staging/iio/Documentation/lsiio.c b/drivers/staging/iio/Documentation/lsiio.c index 3b436f13b872..98a0de098130 100644 --- a/drivers/staging/iio/Documentation/lsiio.c +++ b/drivers/staging/iio/Documentation/lsiio.c @@ -63,9 +63,12 @@ static int dump_one_device(const char *dev_dir_name) { char name[IIO_MAX_NAME_LENGTH]; int dev_idx; + int retval; - sscanf(dev_dir_name + strlen(iio_dir) + strlen(type_device), + retval = sscanf(dev_dir_name + strlen(iio_dir) + strlen(type_device), "%i", &dev_idx); + if (retval != 1) + return -EINVAL; read_sysfs_string("name", dev_dir_name, name); printf("Device %03d: %s\n", dev_idx, name); @@ -78,9 +81,12 @@ static int dump_one_trigger(const char *dev_dir_name) { char name[IIO_MAX_NAME_LENGTH]; int dev_idx; + int retval; - sscanf(dev_dir_name + strlen(iio_dir) + strlen(type_trigger), + retval = sscanf(dev_dir_name + strlen(iio_dir) + strlen(type_trigger), "%i", &dev_idx); + if (retval != 1) + return -EINVAL; read_sysfs_string("name", dev_dir_name, name); printf("Trigger %03d: %s\n", dev_idx, name); return 0;