usb: gadget: f_fs: remove redundant ffs_data_get()

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commit a3058a5d82 upstream.

During FunctionFS bind, ffs_data_get() function was called twice
(in functionfs_bind() and in ffs_do_functionfs_bind()), while on unbind
ffs_data_put() was called once (in functionfs_unbind() function).
In result refcount never reached value 0, and ffs memory resources has
been never released.

Since ffs_data_get() call in ffs_do_functionfs_bind() is redundant
and not neccessary, we remove it to have equal number of gets ans puts,
and free allocated memory after refcount reach 0.

Fixes: 5920cda (usb: gadget: FunctionFS: convert to new function
	interface with backward compatibility)
Signed-off-by: Robert Baldyga <r.baldyga@samsung.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
[ luis: backported to 3.16: file rename:
  drivers/usb/gadget/function/f_fs.c -> drivers/usb/gadget/f_fs.c ]
Signed-off-by: Luis Henriques <luis.henriques@canonical.com>

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Robert Baldyga 2014-10-09 09:41:16 +02:00 • committed by Luis Henriques

parent 9a7d928710

commit 2bea0ce75f

1 changed files with 0 additions and 2 deletions

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drivers/usb/gadget/f_fs.c

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