Mainline:
commit 5152970538a5e16c03bbcb9f1c780489a795ed40
Author: Chris Ball <[email protected]>
Date: Thu Sep 4 17:11:53 2014 +0100
mfd: rtsx_pcr: Fix MSI enable error handling
pci_enable_msi() can return failure with both positive and negative
integers -- it returns 0 for success -- but is only tested here for
"if (ret < 0)". This causes us to try to use MSI on the RTS5249 SD
reader in the Dell XPS 11 when enabling MSI failed, causing:
[ 1.737110] rtsx_pci: probe of 0000:05:00.0 failed with error
-110
patch has been submitted to kernel-team@
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https://bugs.launchpad.net/bugs/1366841
Title:
[Dell XPS 11] Card reader RTS5249 doesn't work because failed to
enable MSI
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