[PATCH 08/13] MIPS: ralink: fix request_mem_region error handling

From: Arnd Bergmann
Date: Tue Jan 17 2017 - 10:22:21 EST


request_mem_region returns a NULL pointer on error, comparing it
against a number results in a warning:

arch/mips/ralink/of.c: In function 'plat_of_remap_node':
arch/mips/ralink/of.c:45:15: error: ordered comparison of pointer with integer zero [-Werror=extra]
arch/mips/ralink/irq.c: In function 'intc_of_init':
arch/mips/ralink/irq.c:167:15: error: ordered comparison of pointer with integer zero [-Werror=extra]

Signed-off-by: Arnd Bergmann <arnd@xxxxxxxx>
---
arch/mips/ralink/irq.c | 4 ++--
arch/mips/ralink/of.c | 4 ++--
2 files changed, 4 insertions(+), 4 deletions(-)

diff --git a/arch/mips/ralink/irq.c b/arch/mips/ralink/irq.c
index 4911c1445f1a..9b478c95aaf5 100644
--- a/arch/mips/ralink/irq.c
+++ b/arch/mips/ralink/irq.c
@@ -163,8 +163,8 @@ static int __init intc_of_init(struct device_node *node,
if (of_address_to_resource(node, 0, &res))
panic("Failed to get intc memory range");

- if (request_mem_region(res.start, resource_size(&res),
- res.name) < 0)
+ if (!request_mem_region(res.start, resource_size(&res),
+ res.name))
pr_err("Failed to request intc memory");

rt_intc_membase = ioremap_nocache(res.start,
diff --git a/arch/mips/ralink/of.c b/arch/mips/ralink/of.c
index 4c843e039b96..1ada8492733b 100644
--- a/arch/mips/ralink/of.c
+++ b/arch/mips/ralink/of.c
@@ -40,9 +40,9 @@ __iomem void *plat_of_remap_node(const char *node)
if (of_address_to_resource(np, 0, &res))
panic("Failed to get resource for %s", node);

- if ((request_mem_region(res.start,
+ if (!request_mem_region(res.start,
resource_size(&res),
- res.name) < 0))
+ res.name))
panic("Failed to request resources for %s", node);

return ioremap_nocache(res.start, resource_size(&res));
--
2.9.0