i2c: imx: Add missing request_mem_region in probe()
Signed-off-by: Darius Augulis <augulis.darius@gmail.com>
[ben-linux@fluff.org: fix minor patch fault in remove]
Signed-off-by: Ben Dooks <ben-linux@fluff.org>
diff --git a/drivers/i2c/busses/i2c-imx.c b/drivers/i2c/busses/i2c-imx.c
index 22cf200..433d348 100644
--- a/drivers/i2c/busses/i2c-imx.c
+++ b/drivers/i2c/busses/i2c-imx.c
@@ -479,6 +479,11 @@
goto fail1;
}
+ if (!request_mem_region(res->start, res_size, DRIVER_NAME)) {
+ ret = -EBUSY;
+ goto fail2;
+ }
+
/* Setup i2c_imx driver structure */
strcpy(i2c_imx->adapter.name, pdev->name);
i2c_imx->adapter.owner = THIS_MODULE;
@@ -494,7 +499,7 @@
if (IS_ERR(i2c_imx->clk)) {
ret = PTR_ERR(i2c_imx->clk);
dev_err(&pdev->dev, "can't get I2C clock\n");
- goto fail2;
+ goto fail3;
}
clk_enable(i2c_imx->clk);
@@ -502,7 +507,7 @@
ret = request_irq(i2c_imx->irq, i2c_imx_isr, 0, pdev->name, i2c_imx);
if (ret) {
dev_err(&pdev->dev, "can't claim irq %d\n", i2c_imx->irq);
- goto fail3;
+ goto fail4;
}
/* Init queue */
@@ -525,7 +530,7 @@
ret = i2c_add_numbered_adapter(&i2c_imx->adapter);
if (ret < 0) {
dev_err(&pdev->dev, "registration failed\n");
- goto fail4;
+ goto fail5;
}
/* Set up platform driver data */
@@ -542,11 +547,13 @@
return 0; /* Return OK */
-fail4:
+fail5:
free_irq(i2c_imx->irq, i2c_imx);
-fail3:
+fail4:
clk_disable(i2c_imx->clk);
clk_put(i2c_imx->clk);
+fail3:
+ release_mem_region(i2c_imx->res->start, resource_size(res));
fail2:
kfree(i2c_imx);
fail1:
@@ -584,6 +591,7 @@
clk_disable(i2c_imx->clk);
clk_put(i2c_imx->clk);
+ release_mem_region(i2c_imx->res->start, resource_size(i2c_imx->res));
iounmap(i2c_imx->base);
kfree(i2c_imx);
return 0;