From eeb3711b89d68e147e05e7b43a49ecc5009dc157 Mon Sep 17 00:00:00 2001 From: Paul Walmsley Date: Fri, 13 Apr 2012 06:34:32 -0600 Subject: ARM: OMAP2+: clean up some cppcheck warnings MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Resolve some warnings identified by cppcheck in arch/arm/mach-omap2: [arch/arm/mach-omap2/usb-tusb6010.c:129]: (style) Checking if unsigned variable 'tmp' is less than zero. [arch/arm/mach-omap2/prm_common.c:241]: (error) Possible null pointer dereference: irq_setup - otherwise it is redundant to check if irq_setup is null at line 247 [arch/arm/mach-omap2/pm34xx.c:790]: (style) Variable 'per_clkdm' is assigned a value that is never used [arch/arm/mach-omap2/pm34xx.c:790]: (style) Variable 'core_clkdm' is assigned a value that is never used [arch/arm/mach-omap2/pm24xx.c:185]: (style) Variable 'only_idle' is assigned a value that is never used [arch/arm/mach-omap2/mux.c:254]: (error) Possible null pointer dereference: mux [arch/arm/mach-omap2/mux.c:258]: (error) Possible null pointer dereference: mux [arch/arm/mach-omap2/gpmc-onenand.c:178]: (style) Variable 'tick_ns' is assigned a value that is never used [arch/arm/mach-omap2/gpio.c:56]: (error) Possible null pointer dereference: pdata - otherwise it is redundant to check if pdata is null at line 57 [arch/arm/mach-omap2/devices.c:45]: (style) Variable 'l' is assigned a value that is never used [arch/arm/mach-omap2/board-omap3evm.c:641] -> [arch/arm/mach-omap2/board-omap3evm.c:639]: (style) Found duplicate branches for if and else. [arch/arm/mach-omap2/am35xx-emac.c:95]: (style) Variable 'regval' is assigned a value that is never used [arch/arm/mach-omap2/devices.c:74]: (style) Variable 'l' is assigned a value that is never used [arch/arm/mach-omap2/pm34xx.c:277]: (style) Variable 'per_prev_state' is assigned a value that is never used [arch/arm/plat-omap/dmtimer.c:352]: (error) Possible null pointer dereference: timer - otherwise it is redundant to check if timer is null at line 354 [arch/arm/plat-omap/omap_device.c:478]: (style) Variable 'c' is assigned a value that is never used [arch/arm/plat-omap/usb.c:42]: (style) Variable 'status' is assigned a value that is never used [arch/arm/mach-omap1/clock.c:197]: (style) Variable 'dpll1_rate' is assigned a value that is never used [arch/arm/mach-omap1/lcd_dma.c:60]: (style) struct or union member 'lcd_dma_info::size' is never used [arch/arm/mach-omap1/pm.c:572]: (style) Variable 'entry' is assigned a value that is never used Some of them are pretty good catches, such as gpio.c:56 and usb-tusb6010.c:129. Thanks to Jarkko Nikula for some comments on the sscanf() warnings. It seems that the kernel sscanf() ignores the field width anyway for the %d format, so those changes have been dropped from this second version. Thanks to Daniel Marjamäki for pointing out that a variable was unnecessarily marked static in the board-omap3evm.c change. Signed-off-by: Paul Walmsley Cc: Felipe Balbi Cc: Tony Lindgren Cc: Kevin Hilman Cc: Peter Ujfalusi Cc: Jarkko Nikula Cc: Charulatha Varadarajan Cc: Daniel Marjamäki Cc: Tarun Kanti DebBarma Reviewed-by: Charulatha Varadarajan # for gpio.c --- arch/arm/mach-omap1/clock.c | 3 +-- 1 file changed, 1 insertion(+), 2 deletions(-) (limited to 'arch/arm/mach-omap1/clock.c') diff --git a/arch/arm/mach-omap1/clock.c b/arch/arm/mach-omap1/clock.c index 67382ddd8c8..a9ee06b6cb4 100644 --- a/arch/arm/mach-omap1/clock.c +++ b/arch/arm/mach-omap1/clock.c @@ -194,9 +194,8 @@ int omap1_select_table_rate(struct clk *clk, unsigned long rate) { /* Find the highest supported frequency <= rate and switch to it */ struct mpu_rate * ptr; - unsigned long dpll1_rate, ref_rate; + unsigned long ref_rate; - dpll1_rate = ck_dpll1_p->rate; ref_rate = ck_ref_p->rate; for (ptr = omap1_rate_table; ptr->rate; ptr++) { -- cgit v1.2.3