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The MPBL0010 Telco clock driver (drivers/char/tlclk.c) uses 0222 (anyone
can write) permissions on its writable sysfs entries. Alter the
permissions to 0220 (owner and group can write).
The use case for this driver is to configure the fail over behavior of the
clock hardware. That should be done by the more privileged users.
Signed-off-by: Mark Bellon <mbellon@mvista.com>
Acked-by: "Gross, Mark" <mark.gross@intel.com>
Cc: <stable@kernel.org>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
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tlclk calls register_chrdev() and permits register_chrdev() to allocate the
major, but it promptly forgets what that major was. So if there's no hardware
present you still get "telco_clock" appearing in /proc/devices and, I assume,
an oops reading /proc/devices if tlclk was a module.
Fix.
Mark, I'd suggest that that we not call register_chrdev() until _after_ we've
established that the hardware is present.
Cc: Mark Gross <mgross@linux.intel.com>
Cc: <stable@kernel.org>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
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some driver clean ups, and a re-posting of changes that are needed
to match the updated TPS.
Signed-off-by: Mark Gross <mark.gross@intel.com>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
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messages
I sent this out a couple of months ago and the driver author said it
he'd merge it. Nothing has happened since so I'm submitting it directly.
No functionality changes just texts.
Signed-off-by: Alan Cox <alan@redhat.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
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drivers/char/tlclk.c: In function `tlclk_init':
drivers/char/tlclk.c:775: warning: implicit declaration of function `platform_device_register_simple'
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
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Signed-off-by: Mark Gross <mgross@linux.intel.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
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