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Return early from the scan_* functions if the
opendir call fails. This allows to reduce the
indentation level of the subsequent code by
one tab.
Signed-off-by: Gabor Juhos <juhosg@openwrt.org>
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There are only one variable present for a given
type. Remove the '2' suffix from the variable
names. Also rename the function argument to avoid
name collision.
Signed-off-by: Gabor Juhos <juhosg@openwrt.org>
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The scan_{block,class,subsystem} functions are using
identical code for scanning. Move that into a separate
function to avoid code duplication.
Signed-off-by: Gabor Juhos <juhosg@openwrt.org>
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The presence of the 'uevent' attribute file
does not always mean that a corresponding
device node can be created under '/dev'.
For valid device nodes, a 'dev' attribute
file must be present which cntains the major
and minor numbers of the device.
Modify the code to check the presence of the
dev attribute as well. This allows to avoid
superfluous trigger_uevent calls. On a test
system, the patch reduced the number of the
triegger_uevent calls from 144 to 70.
Signed-off-by: Gabor Juhos <juhosg@openwrt.org>
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Move the code from device_list_insert() into
a separate function. This makes it possible
to reuse the code for other attribute files.
Signed-off-by: Gabor Juhos <juhosg@openwrt.org>
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Signed-off-by: Gabor Juhos <juhosg@openwrt.org>
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