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tools: env: fw_env: Fix unused-result warning

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Fix unused-result warning about fread.

tools/env/fw_env.c: In function ‘find_nvmem_device’:
tools/env/fw_env.c:1751:3: warning: ignoring return value of ‘fread’, declared with attribute warn_unused_result [-Wunused-result]
 1751 |   fread(buf, sizeof(buf), 1, fp);
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

Signed-off-by: Jaehoon Chung <jh80.chung@samsung.com>
This commit is contained in:
Jaehoon Chung 2022-10-13 17:41:21 +09:00 committed by Tom Rini
parent 2b2e9127cc
commit c059a22b77
1 changed files with 9 additions and 1 deletions
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10
tools/env/fw_env.c vendored
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@ -1733,6 +1733,7 @@ static int find_nvmem_device(void)
while (!nvmem && (dent = readdir(dir))) { while (!nvmem && (dent = readdir(dir))) {
FILE *fp; FILE *fp;
size_t size;
if (!strcmp(dent->d_name, ".") || !strcmp(dent->d_name, "..")) { if (!strcmp(dent->d_name, ".") || !strcmp(dent->d_name, "..")) {
continue; continue;
@ -1748,7 +1749,14 @@ static int find_nvmem_device(void)
continue; continue;
} }
fread(buf, sizeof(buf), 1, fp); size = fread(buf, sizeof(buf), 1, fp);
if (size != 1) {
fprintf(stderr,
"read failed about %s\n", comp);
fclose(fp);
return -EIO;
}
if (!strcmp(buf, "u-boot,env")) { if (!strcmp(buf, "u-boot,env")) {
bytes = asprintf(&nvmem, "%s/%s/nvmem", path, dent->d_name); bytes = asprintf(&nvmem, "%s/%s/nvmem", path, dent->d_name);