X-Git-Url: https://git.kernel.dk/?p=fio.git;a=blobdiff_plain;f=backend.c;h=207b509d2698f724baf44b94b4a0518ba065b737;hp=2aa88403da00600c5a1b8713572aa5840eb7dba3;hb=b44b9e45cf38;hpb=c44ff5115df69f0040aef9677bf48966d72adb81

diff --git a/backend.c b/backend.c
index 2aa88403..207b509d 100644
--- a/backend.c
+++ b/backend.c
@@ -1172,13 +1172,17 @@ static int switch_ioscheduler(struct thread_data *td)
 	/*
 	 * Read back and check that the selected scheduler is now the default.
 	 */
+	memset(tmp, 0, sizeof(tmp));
 	ret = fread(tmp, sizeof(tmp), 1, f);
 	if (ferror(f) || ret < 0) {
 		td_verror(td, errno, "fread");
 		fclose(f);
 		return 1;
 	}
-	tmp[sizeof(tmp) - 1] = '\0';
+	/*
+	 * either a list of io schedulers or "none\n" is expected.
+	 */
+	tmp[strlen(tmp) - 1] = '\0';
 
 
 	sprintf(tmp2, "[%s]", td->o.ioscheduler);