Use the newly introduced devm_ioremap_resource() instead of
devm_request_and_ioremap() which provides more consistent error handling.
devm_ioremap_resource() provides its own error messages; so all explicit
error messages can be removed from the failure code paths.
Signed-off-by: Sachin Kamat <sachin.ka...@linaro.org>
Cc: Dmitry Torokhov <dmitry.torok...@gmail.com>
Cc: linux-in...@vger.kernel.org
---
Patch based & compile tested on linux-next tree (20130128).
Changes since v1:
* Dropped the error message as it is now handled by devm_ioremap_resource()
itself.
---
drivers/input/keyboard/tegra-kbc.c | 9 ++++-----
1 files changed, 4 insertions(+), 5 deletions(-)
diff --git a/drivers/input/keyboard/tegra-kbc.c
b/drivers/input/keyboard/tegra-kbc.c
index 46e8ad2..fc43806 100644
--- a/drivers/input/keyboard/tegra-kbc.c
+++ b/drivers/input/keyboard/tegra-kbc.c
@@ -31,6 +31,7 @@
#include <linux/slab.h>
#include <linux/input/tegra_kbc.h>
#include <linux/clk/tegra.h>
+#include <linux/err.h>
#define KBC_MAX_DEBOUNCE_CNT 0x3ffu
@@ -615,11 +616,9 @@ static int tegra_kbc_probe(struct platform_device *pdev)
spin_lock_init(&kbc->lock);
setup_timer(&kbc->timer, tegra_kbc_keypress_timer, (unsigned long)kbc);
- kbc->mmio = devm_request_and_ioremap(&pdev->dev, res);
- if (!kbc->mmio) {
- dev_err(&pdev->dev, "Cannot request memregion/iomap address\n");
- return -EBUSY;
- }
+ kbc->mmio = devm_ioremap_resource(&pdev->dev, res);
+ if (IS_ERR(kbc->mmio))
+ return PTR_ERR(kbc->mmio);
kbc->clk = devm_clk_get(&pdev->dev, NULL);
if (IS_ERR(kbc->clk)) {
--
1.7.4.1
--
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