[GIT PULL] MMC fixes for v.3.19, take 3

Hi Linus, Here is one more mmc fix for 3.19, take 3. I expect this to be the last fix for mmc for 3.19. Do note that it's based on your master branch from yesterday and not on an rc which is what I do normally. If you don't like it like this, I can re-base it next week. Details are as usual

[GIT PULL] MMC fixes for v.3.19, take 3

Hi Linus, Here is one more mmc fix for 3.19, take 3. I expect this to be the last fix for mmc for 3.19. Do note that it's based on your master branch from yesterday and not on an rc which is what I do normally. If you don't like it like this, I can re-base it next week. Details are as usual