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-rw-r--r--toys/other/acpi.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/toys/other/acpi.c b/toys/other/acpi.c
index c4f31283..44fd03b1 100644
--- a/toys/other/acpi.c
+++ b/toys/other/acpi.c
@@ -38,7 +38,7 @@ int read_int_at(int dirfd, char *name)
FILE *fil;
if ((fd = openat(dirfd, name, O_RDONLY)) < 0) return -1;
- fscanf(fil = xfdopen(fd, "r"), "%d", &ret);
+ if (!fscanf(fil = xfdopen(fd, "r"), "%d", &ret)) perror_exit("%s", name);
fclose(fil);
return ret;