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Split out all FB related data out of struct picolcd_data into a struct
picolcd_fb_data that is allocated with fb_info. This way fb_info may
cleanly outlive struct picolcd_data for as long as needed for its last
user to drop his reference.
Access to struct picolcd_data is now protected with struct
picolcd_fb_data's lock and tile update reports are only generated
while picolcd_fbdata->picolcd is not NULL and is not marked as failed
(which indicates unplug in progress).
Signed-off-by: Bruno Prémont <bonbons@linux-vserver.org>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
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Fixes thes build errors:
drivers/hid/hid-picolcd_fb.c: In function 'picolcd_fb_destroy':
drivers/hid/hid-picolcd_fb.c:350:2: error: implicit declaration of function 'vfree' [-Werror=implicit-function-declaration]
drivers/hid/hid-picolcd_fb.c: In function 'picolcd_init_framebuffer':
drivers/hid/hid-picolcd_fb.c:508:2: error: implicit declaration of function 'vmalloc' [-Werror=implicit-function-declaration]
drivers/hid/hid-picolcd_fb.c:508:12: warning: assignment makes pointer from integer without a cast [enabled by default]
Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
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Stop earlier attempting to submit new reports/URBs (though locking and
usbhid still prevents to bail out early enough to not produce multiple
hid-picolcd 0003:04D8:C002.0003: usb_submit_urb(out) failed: -19
messages in kernel log.
Strengthen framebuffer removal to be less racy.
Signed-off-by: Bruno Prémont <bonbons@linux-vserver.org>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
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Signed-off-by: Bruno Prémont <bonbons@linux-vserver.org>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
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In order to make code maintenance easier, split the vairous
functions into individial files (this removes a bunch of #ifdefs).
Signed-off-by: Bruno Prémont <bonbons@linux-vserver.org>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
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