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authorArnd Bergmann <arnd@arndb.de>2016-01-13 21:51:29 +0100
committerMark Brown <broonie@kernel.org>2016-01-15 19:13:53 +0100
commitebea7c0545d4d5e554b84c3ee8072f13c3fdd2ba (patch)
tree48367a617efced8adee1e856b330103a00a02a70
parentMerge remote-tracking branches 'spi/topic/sun4i', 'spi/topic/topcliff-pch' an... (diff)
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spi: fix counting in spi-loopback-test code
These variables are always used uninitialized: drivers/spi/spi-loopback-test.c: In function 'spi_test_run_iter': drivers/spi/spi-loopback-test.c:768:17: warning: 'rx_count' may be used uninitialized in this function [-Wmaybe-uninitialized] drivers/spi/spi-loopback-test.c:762:17: warning: 'tx_count' may be used uninitialized in this function [-Wmaybe-uninitialized] Adding an explicit initialization seems to be the only workable solution here, to make the code behave correctly and build without warning. Fixes: 84e0c4e5e2c4 ("spi: add loopback test driver to allow for spi_master regression tests") Signed-off-by: Arnd Bergmann <arnd@arndb.de> Acked-by: Geert Uytterhoeven <geert@linux-m68k.org> Signed-off-by: Mark Brown <broonie@kernel.org>
-rw-r--r--drivers/spi/spi-loopback-test.c1
1 files changed, 1 insertions, 0 deletions
diff --git a/drivers/spi/spi-loopback-test.c b/drivers/spi/spi-loopback-test.c
index 894616f687b0..cf4bb36bee25 100644
--- a/drivers/spi/spi-loopback-test.c
+++ b/drivers/spi/spi-loopback-test.c
@@ -761,6 +761,7 @@ static int spi_test_run_iter(struct spi_device *spi,
test.iterate_transfer_mask = 1;
/* count number of transfers with tx/rx_buf != NULL */
+ rx_count = tx_count = 0;
for (i = 0; i < test.transfer_count; i++) {
if (test.transfers[i].tx_buf)
tx_count++;