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| author | Axel Lin <axel.lin@gmail.com> | 2010-05-25 14:49:51 +0800 |
|---|---|---|
| committer | Samuel Ortiz <sameo@linux.intel.com> | 2010-08-12 11:27:17 +0200 |
| commit | d281b80c46da8bae806c4ef5682187f07e35389d (patch) | |
| tree | 96ff99c6359cdf53cd2e0e6d862bc5fab9f2e159 /drivers/mfd | |
| parent | 21f1fc38606b35bb12a4772367ef68128cd12c30 (diff) | |
| download | linux-d281b80c46da8bae806c4ef5682187f07e35389d.tar.gz linux-d281b80c46da8bae806c4ef5682187f07e35389d.tar.bz2 linux-d281b80c46da8bae806c4ef5682187f07e35389d.zip | |
mfd: Fix memory leak in ab3100_otp_probe
In current implementation, there is a memory leak if ab3100_otp_read fail.
And in the case of ab3100_otp_init_debugfs fail, it does not properly remove
sysfs entries.
This patch properly handle above failure cases.
Signed-off-by: Axel Lin <axel.lin@gmail.com>
Acked-by: Linus Walleij <linus.walleij@stericsson.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
Diffstat (limited to 'drivers/mfd')
| -rw-r--r-- | drivers/mfd/ab3100-otp.c | 16 |
1 files changed, 8 insertions, 8 deletions
diff --git a/drivers/mfd/ab3100-otp.c b/drivers/mfd/ab3100-otp.c index 63d2b727ddbb..8440010eb2b8 100644 --- a/drivers/mfd/ab3100-otp.c +++ b/drivers/mfd/ab3100-otp.c @@ -199,7 +199,7 @@ static int __init ab3100_otp_probe(struct platform_device *pdev) err = ab3100_otp_read(otp); if (err) - return err; + goto err_otp_read; dev_info(&pdev->dev, "AB3100 OTP readout registered\n"); @@ -208,21 +208,21 @@ static int __init ab3100_otp_probe(struct platform_device *pdev) err = device_create_file(&pdev->dev, &ab3100_otp_attrs[i]); if (err) - goto out_no_sysfs; + goto err_create_file; } /* debugfs entries */ err = ab3100_otp_init_debugfs(&pdev->dev, otp); if (err) - goto out_no_debugfs; + goto err_init_debugfs; return 0; -out_no_sysfs: - for (i = 0; i < ARRAY_SIZE(ab3100_otp_attrs); i++) - device_remove_file(&pdev->dev, - &ab3100_otp_attrs[i]); -out_no_debugfs: +err_init_debugfs: +err_create_file: + while (--i >= 0) + device_remove_file(&pdev->dev, &ab3100_otp_attrs[i]); +err_otp_read: kfree(otp); return err; } |