From mboxrd@z Thu Jan 1 00:00:00 1970 From: Wolfram Sang Subject: [PATCH 17/24] regulator: fix dangling pointers Date: Sat, 20 Mar 2010 15:12:58 +0100 Message-ID: <1269094385-16114-18-git-send-email-w.sang@pengutronix.de> References: <1269094385-16114-1-git-send-email-w.sang@pengutronix.de> Return-path: In-Reply-To: <1269094385-16114-1-git-send-email-w.sang-bIcnvbaLZ9MEGnE8C9+IrQ@public.gmane.org> Sender: linux-i2c-owner-u79uwXL29TY76Z2rM5mHXA@public.gmane.org To: kernel-janitors-u79uwXL29TY76Z2rM5mHXA@public.gmane.org Cc: linux-i2c-u79uwXL29TY76Z2rM5mHXA@public.gmane.org, linux-kernel-u79uwXL29TY76Z2rM5mHXA@public.gmane.org, Wolfram Sang , Liam Girdwood , Mark Brown List-Id: linux-i2c@vger.kernel.org Fix I2C-drivers which missed setting clientdata to NULL before freeing the structure it points to. Also fix drivers which do this _after_ the structure was freed already. Signed-off-by: Wolfram Sang Cc: Liam Girdwood Cc: Mark Brown --- Found using coccinelle, then reviewed. Full patchset is available via kernel-janitors, linux-i2c, and LKML. --- drivers/regulator/max1586.c | 2 +- drivers/regulator/max8649.c | 3 ++- drivers/regulator/max8660.c | 2 +- 3 files changed, 4 insertions(+), 3 deletions(-) diff --git a/drivers/regulator/max1586.c b/drivers/regulator/max1586.c index a49fc95..c0b09e1 100644 --- a/drivers/regulator/max1586.c +++ b/drivers/regulator/max1586.c @@ -243,8 +243,8 @@ static int __devexit max1586_pmic_remove(struct i2c_client *client) for (i = 0; i <= MAX1586_V6; i++) if (rdev[i]) regulator_unregister(rdev[i]); - kfree(rdev); i2c_set_clientdata(client, NULL); + kfree(rdev); return 0; } diff --git a/drivers/regulator/max8649.c b/drivers/regulator/max8649.c index 3ebdf69..833aaed 100644 --- a/drivers/regulator/max8649.c +++ b/drivers/regulator/max8649.c @@ -356,6 +356,7 @@ static int __devinit max8649_regulator_probe(struct i2c_client *client, dev_info(info->dev, "Max8649 regulator device is detected.\n"); return 0; out: + i2c_set_clientdata(client, NULL); kfree(info); return ret; } @@ -367,9 +368,9 @@ static int __devexit max8649_regulator_remove(struct i2c_client *client) if (info) { if (info->regulator) regulator_unregister(info->regulator); + i2c_set_clientdata(client, NULL); kfree(info); } - i2c_set_clientdata(client, NULL); return 0; } diff --git a/drivers/regulator/max8660.c b/drivers/regulator/max8660.c index f12f1bb..47f90b2 100644 --- a/drivers/regulator/max8660.c +++ b/drivers/regulator/max8660.c @@ -470,8 +470,8 @@ static int __devexit max8660_remove(struct i2c_client *client) for (i = 0; i < MAX8660_V_END; i++) if (rdev[i]) regulator_unregister(rdev[i]); - kfree(rdev); i2c_set_clientdata(client, NULL); + kfree(rdev); return 0; } -- 1.7.0