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i2c-omap: Fix NULL pointer dereferencing 

This patch fixes bug #9581 reported by Marcio Buss. If kzalloc fails,
omap_i2c_write_reg() tries to reset an unallocated I2C controller.

Cc: Marcio Buss <marciobuss@gmail.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
Signed-off-by: Jean Delvare <khali@linux-fr.org>
This commit is contained in:
Tony Lindgren 2008-01-14 21:53:30 +01:00 committed by Jean Delvare
parent 1a1b285c24
commit 3e39752d53
1 changed files with 1 additions and 1 deletions
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2
drivers/i2c/busses/i2c-omap.c
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@ -619,13 +619,13 @@ omap_i2c_probe(struct platform_device *pdev)
err_free_irq: err_free_irq:
free_irq(dev->irq, dev); free_irq(dev->irq, dev);
err_unuse_clocks: err_unuse_clocks:
omap_i2c_write_reg(dev, OMAP_I2C_CON_REG, 0);
omap_i2c_disable_clocks(dev); omap_i2c_disable_clocks(dev);
omap_i2c_put_clocks(dev); omap_i2c_put_clocks(dev);
err_free_mem: err_free_mem:
platform_set_drvdata(pdev, NULL); platform_set_drvdata(pdev, NULL);
kfree(dev); kfree(dev);
err_release_region: err_release_region:
omap_i2c_write_reg(dev, OMAP_I2C_CON_REG, 0);
release_mem_region(mem->start, (mem->end - mem->start) + 1); release_mem_region(mem->start, (mem->end - mem->start) + 1);
return r; return r;