Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
tjh.dev
kernel
os
linux
OMAP2/3: IRQ: ensure valid base address
Ensure valid base address during IRQ init. Fixes compiler warning
about potential use of uninitialized variable.
Signed-off-by: Kevin Hilman <khilman@deeprootsystems.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
authored by Kevin Hilman and committed by Tony Lindgren 74005a2b 9af915da
+3
-1
arch/arm/mach-omap2/irq.c
+3
-1
arch/arm/mach-omap2/irq.c
···
194
int i;
195
196
for (i = 0; i < ARRAY_SIZE(irq_banks); i++) {
197
-
unsigned long base;
198
struct omap_irq_bank *bank = irq_banks + i;
199
200
if (cpu_is_omap24xx())
201
base = OMAP24XX_IC_BASE;
202
else if (cpu_is_omap34xx())
203
base = OMAP34XX_IC_BASE;
204
205
/* Static mapping, never released */
206
bank->base_reg = ioremap(base, SZ_4K);
···
194
int i;
195
196
for (i = 0; i < ARRAY_SIZE(irq_banks); i++) {
197
+
unsigned long base = 0;
198
struct omap_irq_bank *bank = irq_banks + i;
199
200
if (cpu_is_omap24xx())
201
base = OMAP24XX_IC_BASE;
202
else if (cpu_is_omap34xx())
203
base = OMAP34XX_IC_BASE;
204
+
205
+
BUG_ON(!base);
206
207
/* Static mapping, never released */
208
bank->base_reg = ioremap(base, SZ_4K);