If vmclock_ptp_register() fails during probing, vmclock_remove() is called to clean up the ptp clock and misc device. It uses dev_get_drvdata() to access the vmclock state. However the driver data is not yet set at this point.
Assign the driver data earlier.
Fixes: 205032724226 ("ptp: Add support for the AMZNC10C 'vmclock' device") Cc: stable@vger.kernel.org Signed-off-by: Thomas Weißschuh thomas.weissschuh@linutronix.de Reviewed-by: Mateusz Polchlopek mateusz.polchlopek@intel.com Acked-by: Richard Cochran richardcochran@gmail.com Reviewed-by: David Woodhouse dwmw@amazon.co.uk --- drivers/ptp/ptp_vmclock.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/drivers/ptp/ptp_vmclock.c b/drivers/ptp/ptp_vmclock.c index dbc73e5382935dcbc799ea608b87f5ff51044ebc..1ba30a2da570fb4d1ec9db72820bf1781dfa9655 100644 --- a/drivers/ptp/ptp_vmclock.c +++ b/drivers/ptp/ptp_vmclock.c @@ -525,6 +525,8 @@ static int vmclock_probe(struct platform_device *pdev) goto out; }
+ dev_set_drvdata(dev, st); + if (le32_to_cpu(st->clk->magic) != VMCLOCK_MAGIC || le32_to_cpu(st->clk->size) > resource_size(&st->res) || le16_to_cpu(st->clk->version) != 1) { @@ -588,8 +590,6 @@ static int vmclock_probe(struct platform_device *pdev) (st->miscdev.minor && st->ptp_clock) ? ", " : "", st->ptp_clock ? "PTP" : "");
- dev_set_drvdata(dev, st); - out: return ret; }