From: Uwe Kleine-König Date: Tue, 21 Jul 2015 08:30:42 +0000 (+0200) Subject: spi: mpc512x-psc: fix compiler warning about uninitialized variable X-Git-Tag: firefly_0821_release~176^2~1210^2~3^5 X-Git-Url: http://demsky.eecs.uci.edu/git/?a=commitdiff_plain;h=1f2112af11e4c330cd070464e95ba9f546b8959b;p=firefly-linux-kernel-4.4.55.git spi: mpc512x-psc: fix compiler warning about uninitialized variable This fixes several warnings like: drivers/spi/spi-mpc512x-psc.c: In function 'mpc512x_psc_spi_prep_xfer_hw': arch/powerpc/include/asm/io.h:163:2: warning: '__ret' may be used uninitialized in this function [-Wmaybe-uninitialized] introduced in commit 8bf960985dfc for some build configurations. Fixes: 8bf960985dfc ("spi: mpc512x-psc: add support for Freescale MPC5125") Signed-off-by: Uwe Kleine-König Signed-off-by: Mark Brown --- diff --git a/drivers/spi/spi-mpc512x-psc.c b/drivers/spi/spi-mpc512x-psc.c index 280794dd248a..1e75341689a6 100644 --- a/drivers/spi/spi-mpc512x-psc.c +++ b/drivers/spi/spi-mpc512x-psc.c @@ -40,8 +40,8 @@ enum { * MPC5121 (which uses a struct mpc52xx_psc) and MPC5125 (using mpc5125_psc). */ #define psc_addr(mps, regname) ({ \ - void *__ret; \ - switch(mps->type) { \ + void *__ret = NULL; \ + switch (mps->type) { \ case TYPE_MPC5121: { \ struct mpc52xx_psc __iomem *psc = mps->psc; \ __ret = &psc->regname; \