Re: [PATCH][RESEND] Semi-pointless NULL test in uli526x driver

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Jesper Juhl wrote:
(resending previously submitted patch from 16/7-2007 22:40)


Hi,

In drivers/net/tulip/uli526x.c::uli526x_interrupt() there's a test of the function argument 'void *dev_id' against NULL. But that test is pretty pointless, since if ever 'dev_id' is NULL we'll already have crashed inside "netdev_priv(dev)".

I don't think dev_id can ever actually be NULL, so the whole block inside "if (!dev) {" could probably just go away. But I guess there's a good reason someone put that ULI526X_DBUG() in there - and if 'dev_id' /can/ actually be NULL then it's nice to have and in that case this patch actually fixes a possible crash (hence the version number update). So I guess that in this case we should just move the "db = netdev_priv(dev)" assignment past that NULL test. That's what this patch does.

Found by the Coverity checker.
Compile tested.


PS. Please keep me on Cc when replying.


Signed-off-by: Jesper Juhl <[email protected]>

Just remove the dev==NULL test...

Thanks,

	Jeff



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