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authorKevin Wolf <kwolf@redhat.com>2011-06-01 13:29:11 +0200
committerAnthony Liguori <aliguori@us.ibm.com>2011-07-23 11:18:57 -0500
commit6e1db57b2ac9025c2443c665a0d9e78748637b26 (patch)
treecb4b73d71dccfc14737c713b07ee3bf89a3c0cf2 /qemu-io.c
parent84682834eb8f654da5e03a92930d80b8ae0d3065 (diff)
qemu-char: Print strerror message on failure
The only way for chardev drivers to communicate an error was to return a NULL pointer, which resulted in an error message that said _that_ something went wrong, but not _why_. This patch changes the interface to return 0/-errno and updates qemu_chr_open_opts to use strerror to display a more helpful error message. Signed-off-by: Kevin Wolf <kwolf@redhat.com> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
Diffstat (limited to 'qemu-io.c')
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