Messages in this thread | | | Date | Mon, 24 May 2021 09:09:03 +0200 | From | Greg KH <> | Subject | Re: [PATCH 2/2] char: pcmcia: cm4040_cs: Fix failure handling Handled failure cases of device_create() |
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On Mon, May 24, 2021 at 01:00:29AM +0530, nizamhaider786@gmail.com wrote: > From: Nijam Haider <nizamhaider786@gmail.com> > > Signed-off-by: Nijam Haider <nizamhaider786@gmail.com> > --- > drivers/char/pcmcia/cm4040_cs.c | 12 ++++++++++-- > 1 file changed, 10 insertions(+), 2 deletions(-) > > diff --git a/drivers/char/pcmcia/cm4040_cs.c b/drivers/char/pcmcia/cm4040_cs.c > index d5e4360..30bb977 100644 > --- a/drivers/char/pcmcia/cm4040_cs.c > +++ b/drivers/char/pcmcia/cm4040_cs.c > @@ -558,6 +558,7 @@ static void reader_release(struct pcmcia_device *link) > static int reader_probe(struct pcmcia_device *link) > { > struct reader_dev *dev; > + struct device *dev_ret; > int i, ret; > > for (i = 0; i < CM_MAX_DEV; i++) { > @@ -593,8 +594,15 @@ static int reader_probe(struct pcmcia_device *link) > return ret; > } > > - device_create(cmx_class, NULL, MKDEV(major, i), NULL, "cmx%d", i); > - > + dev_ret = device_create(cmx_class, NULL, MKDEV(major, i), NULL, "cmx%d", i); > + if (IS_ERR(dev_ret)) { > + printk(KERN_ERR "device_create failed for %d\n", > + i); > + reader_release(link); > + dev_table[i] = NULL; > + kfree(dev); > + return -ENODEV; > + } > return 0; > } > > -- > 2.7.4 >
Hi,
This is the friendly patch-bot of Greg Kroah-Hartman. You have sent him a patch that has triggered this response. He used to manually respond to these common problems, but in order to save his sanity (he kept writing the same thing over and over, yet to different people), I was created. Hopefully you will not take offence and will fix the problem in your patch and resubmit it so that it can be accepted into the Linux kernel tree.
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thanks,
greg k-h's patch email bot
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