stress-test.sh: do not use pipe unnecessarily

Use 'grep patt file' instead of cat file | grep patt.

Signed-off-by: Artem Bityutskiy <artem.bityutskiy@linux.intel.com>

diff --git a/tests/ubi-tests/stress-test.sh b/tests/ubi-tests/stress-test.sh
index ad9a2af57153bf41b7dfb5d5cd8f2de75480c74c..c92525e6e4fbaf1b481806b1c75614091c6a7ff2 100755 (executable)
--- a/tests/ubi-tests/stress-test.sh
+++ b/tests/ubi-tests/stress-test.sh
@@ -62,9 +62,9 @@ fi
 # Make sure neither mtdram nor nandsim are used
 nandsim_patt="NAND simulator"
 mtdram_patt="mtdram test device"
-! cat /proc/mtd | grep -q "$nandsim_patt" ||
+! grep -q "$nandsim_patt" /proc/mtd ||
        fatal "the nandsim driver is already used"
-! cat /proc/mtd | grep -q "$mtdram_patt" ||
+! grep -q "$mtdram_patt" /proc/mtd ||
        fatal "the mtdram driver is already used"
 
 rmmod ubi >/dev/null 2>&1 ||: