> "Pan" == Pan Bian writes:
Pan> Variable ret is reset in the loop, and its value will be 0 during
Pan> the second and after repeat of the loop. If pci_alloc_consistent()
Pan> returns a NULL pointer then, it will leaves with return value 0. 0
Pan> means no error, which is contrary to the fact
> -Original Message-
> From: Pan Bian [mailto:bianpan201...@163.com]
> Sent: Sunday, December 04, 2016 10:52 AM
> To: Subbu Seetharaman; Ketan Mukadam; Jitendra Bhivare; James E.J.
> Bottomley; Martin K. Petersen; linux-s...@vger.kernel.org
> Cc: linux-kernel@vger.kernel.org; Pan Bian
> Sub
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