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author | Michal Nazarewicz <m.nazarewicz@samsung.com> | 2009-10-28 16:57:22 +0100 |
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committer | Greg Kroah-Hartman <gregkh@suse.de> | 2009-12-11 20:55:19 +0100 |
commit | 9c610213370ad2e58a892f890a11a90615edf020 (patch) | |
tree | c4dc1b738aa33e42916cf26ba5595fac14cbc052 /drivers/usb/gadget/f_acm.c | |
parent | USB: g_mass_storage: constant length buffers used (diff) | |
download | linux-9c610213370ad2e58a892f890a11a90615edf020.tar.xz linux-9c610213370ad2e58a892f890a11a90615edf020.zip |
USB: g_mass_storage: fsg_common_init() created
Moved code initialising fsg_common structure to fsg_common_init()
function which is called from fsg_bind(). Moreover, changed
reference counting mechanism: fsg_common has a reference counter
which counts how many fsg_dev structures uses it. When this
reaches zero fsg_common_release() is run which unregisters
LUN devices and frees memory.
fsg_common_init() takes pointer to fsg_common structure as an
argument. If it is NULL function allocates storage otherwise
uses pointed to memory (handy if fsg_common is a field of another
structure or a static variable).
fsg_common_release() will free storage only if
free_storage_on_release is set -- it is initialised by
fsg_common_init(): set if allocation was done, unset
otherwise (one may overwrite it of course).
Signed-off-by: Michal Nazarewicz <m.nazarewicz@samsung.com>
Cc: David Brownell <dbrownell@users.sourceforge.net>
Cc: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Diffstat (limited to 'drivers/usb/gadget/f_acm.c')
0 files changed, 0 insertions, 0 deletions