From mboxrd@z Thu Jan 1 00:00:00 1970 From: Wolfram Sang Subject: [PATCH 19/24] staging/dream: fix dangling pointers Date: Sat, 20 Mar 2010 15:13:00 +0100 Message-ID: <1269094385-16114-20-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 , Greg Kroah-Hartman , devel-gWbeCf7V1WCQmaza687I9mD2FQJk+8+b@public.gmane.org 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: Greg Kroah-Hartman --- Found using coccinelle, then reviewed. Full patchset is available via kernel-janitors, linux-i2c, and LKML. --- drivers/staging/dream/synaptics_i2c_rmi.c | 2 ++ 1 files changed, 2 insertions(+), 0 deletions(-) diff --git a/drivers/staging/dream/synaptics_i2c_rmi.c b/drivers/staging/dream/synaptics_i2c_rmi.c index 4de6bc9..a318c18 100644 --- a/drivers/staging/dream/synaptics_i2c_rmi.c +++ b/drivers/staging/dream/synaptics_i2c_rmi.c @@ -534,6 +534,7 @@ err_input_register_device_failed: err_input_dev_alloc_failed: err_detect_failed: err_power_failed: + i2c_set_clientdata(client, NULL); kfree(ts); err_alloc_data_failed: err_check_functionality_failed: @@ -551,6 +552,7 @@ static int synaptics_ts_remove(struct i2c_client *client) else hrtimer_cancel(&ts->timer); input_unregister_device(ts->input_dev); + i2c_set_clientdata(client, NULL); kfree(ts); return 0; } -- 1.7.0