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authorDavid Brownell <david-b@pacbell.net>2007-07-31 00:39:45 -0700
committerLinus Torvalds <torvalds@woody.linux-foundation.org>2007-07-31 15:39:44 -0700
commit082c8cb4e5e68c0fd29cc10c59db94d2284fd2b0 (patch)
tree5f4ec8042b29272f0fd0c28b2cc2c0bb63f38dc0 /drivers/isdn
parent2604288f45605d1b2844f001dc3141149667b3d1 (diff)
spi device setup gets better error checking
This updates some error reporting paths in SPI device setup: - Move validation logic for SPI chipselects to spi_new_device(), which is where it should always have been. - In spi_new_device(), emit error messages if the device can't be created. This is LOTS better than a silent failure; though eventually, the calling convention should probably change to use the <linux/err.h> conventions. - Includes one previously-missing check: SPI masters must always have at least one chipselect, even for dedicated busses which always keep it selected! It also adds a FIXME (IDR for dynamic ID allocation) so the issue doesn't live purely in my mailbox. Signed-off-by: David Brownell <dbrownell@users.sourceforge.net> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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