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libf2fs: avoid build warning

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This avoids the below warnings.

libf2fs_zoned.c:39:8: warning: ignoring return value of 'fscanf', declared with attribute warn_unused_result [-Wunused-result]
fscanf(file, "%s", str);
      ^
libf2fs_zoned.c: In function 'f2fs_get_zone_blocks':
libf2fs_zoned.c:72:8: warning: ignoring return value of 'fscanf', declared with attribute warn_unused_result [-Wunused-result]
fscanf(file, "%s", str);
      ^

Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
This commit is contained in:
Jaegeuk Kim 2016-10-31 21:04:01 -07:00
parent 4b1ecd77a1
commit 0fe50b6f26
1 changed files with 10 additions and 2 deletions
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12
lib/libf2fs_zoned.c
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@ -26,6 +26,7 @@ void f2fs_get_zoned_model()
{
char str[128];
FILE *file;
int res;
/* Check that this is a zoned block device */
snprintf(str, sizeof(str),
@ -36,9 +37,12 @@ void f2fs_get_zoned_model()
goto not_zoned;
memset(str, 0, sizeof(str));
fscanf(file, "%s", str);
res = fscanf(file, "%s", str);
fclose(file);
if (res != 1)
goto not_zoned;
if (strcmp(str, "host-aware") == 0) {
c.zoned_model = F2FS_ZONED_HA;
return;
@ -57,6 +61,7 @@ int f2fs_get_zone_blocks()
uint64_t sectors;
char str[128];
FILE *file;
int res;
/* Get zone size */
c.zone_blocks = 0;
@ -69,9 +74,12 @@ int f2fs_get_zone_blocks()
return -1;
memset(str, 0, sizeof(str));
fscanf(file, "%s", str);
res = fscanf(file, "%s", str);
fclose(file);
if (res != 1)
return -1;
sectors = atol(str);
if (!sectors)
return -1;