The Comedi driver modules build fine if the inclusion of <linux/slab.h>
is removed from "mite.h", so remove it. However, since "mite.c" calls
`kzalloc()`, include <linux/slab.h> there.
Signed-off-by: Ian Abbott <abbotti@mev.co.uk> Reviewed-by: H Hartley Sweeten <hsweeten@visionengravers.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
staging: ion: chunk_heap: use pr_debug for heap creation print
We're currently printing to the kernel log at `info' level when we
successfully create the chunk heap, but success messages should be done
at `debug' level. Fix this.
staging: dgnc: clean up allocation of ->channels[i]
Check if kzalloc fails in dgnc_tty_init() and if it does then free all
previously allocated ->channels[i] and set them to NULL. This makes the code
less error/bug prone because instead of needing programmers attention to add
checks everywhere we do that in one place. Also, remove a bogus comment and
check in the same loop because ->channels[i] isn't allocated anywhere else.
Finally, remove a unnecessary check if ->channels[i] is NULL in the next loop
because it can't be.
Tolga Ceylan [Sat, 2 May 2015 06:40:35 +0000 (23:40 -0700)]
drivers: staging: fbtft: fbtft-bus.c: Fix different address space warning on I/O mem
To fix sparse warning of incorrect type in assignment
(different address space), added annotation __iomem to
vmem8 and modified direct reads with ioread8().
Julia Lawall [Sun, 3 May 2015 13:21:44 +0000 (15:21 +0200)]
staging/lustre/ptlrpc: Replace OBD_CPT_ALLOC etc by kzalloc_node
Replace OBD_CPT_ALLOC, OBD_CPT_ALLOC_PTR, and OBD_CPT_ALLOC_GFP by
corresponding calls to kzalloc_node. The semantic patch for the
OBD_CPT_ALLOC case is as follows: (http://coccinelle.lip6.fr/).
Note that the original OBD macros would check if the cptab argument was
NULL and fall back on kzalloc in that case. Oleg Drokin argues that this
test is not needed because the code containing these calls is only invoked
after initialization has been completed, in which case the possible cptab
arguments are not NULL.
Signed-off-by: Julia Lawall <Julia.Lawall@lip6.fr> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Julia Lawall [Sun, 3 May 2015 13:21:43 +0000 (15:21 +0200)]
drivers: staging: lustre: lustre: Replace OBD_CPT_ALLOC etc by kzalloc_node
Replace OBD_CPT_ALLOC, OBD_CPT_ALLOC_PTR, and OBD_CPT_ALLOC_GFP by
corresponding calls to kzalloc_node. The semantic patch for the
OBD_CPT_ALLOC case is as follows: (http://coccinelle.lip6.fr/).
Note that the original OBD macros would check if the cptab argument was
NULL and fall back on kzalloc in that case. Oleg Drokin argues that this
test is not needed because the code containing these calls is only invoked
after initialization has been completed, in which case the possible cptab
arguments are not NULL.
Signed-off-by: Julia Lawall <Julia.Lawall@lip6.fr> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Julia Lawall [Sun, 3 May 2015 13:21:42 +0000 (15:21 +0200)]
staging: lustre: ptlrpc: Replace OBD_CPT_ALLOC etc by kzalloc_node
Replace OBD_CPT_ALLOC, OBD_CPT_ALLOC_PTR, and OBD_CPT_ALLOC_GFP by
corresponding calls to kzalloc_node. The semantic patch for the
OBD_CPT_ALLOC case is as follows: (http://coccinelle.lip6.fr/).
Note that the original OBD macros would check if the cptab argument was
NULL and fall back on kzalloc in that case. Oleg Drokin argues that this
test is not needed because the code containing these calls is only invoked
after initialization has been completed, in which case the possible cptab
arguments are not NULL.
Signed-off-by: Julia Lawall <Julia.Lawall@lip6.fr> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Julia Lawall [Fri, 1 May 2015 19:37:53 +0000 (21:37 +0200)]
staging: lustre: obdclass: obd_config: remove unneeded null test before free
Kfree can cope with a null argument, so drop null tests.
The semantic patch that identifies this issue is as follows:
(http://coccinelle.lip6.fr/)
// <smpl>
@@ expression ptr; @@
- if (ptr != NULL)
kfree(ptr);
// </smpl>
The first part of the patch introduces new labels to avoid unnecessary
calls to kfree. In addition, lprof->lp_md is always null in the cleanup
code at the end of the function, so that kfree is just dropped.
Signed-off-by: Julia Lawall <Julia.Lawall@lip6.fr> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Julia Lawall [Fri, 1 May 2015 19:38:01 +0000 (21:38 +0200)]
Staging: lustre: llite: file: remove unneeded null test before free
Kfree can cope with a null argument, so drop null tests.
The semantic patch that finds this issue is as follows:
(http://coccinelle.lip6.fr/)
// <smpl>
@@ expression ptr; @@
- if (ptr != NULL)
kfree(ptr);
// </smpl>
In the first case, llss can never be null at the point of the kfree anyway.
In the second set of changes, the gotos are either eliminated, when no
freeing is needed (hss failure case), or rewritten so that there is no call
to free on data that has not yet been allocated (free_hss goto case).
There is no goto at which attr is not null, so the out label is simply
dropped.
Signed-off-by: Julia Lawall <Julia.Lawall@lip6.fr> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
drivers/staging/lustre/lustre/llite/dir.c:1440:3-8: WARNING: NULL check before freeing functions like kfree, debugfs_remove, debugfs_remove_recursive or usb_free_urb is not needed. Maybe consider reorganizing relevant code to avoid passing NULL values.
NULL check before some freeing functions is not needed.
Based on checkpatch warning
"kfree(NULL) is safe this check is probably not required"
and kfreeaddr.cocci by Julia Lawall.
drivers/staging/lustre/lustre/llite/llite_lib.c:989:2-7: WARNING: NULL check before freeing functions like kfree, debugfs_remove, debugfs_remove_recursive or usb_free_urb is not needed. Maybe consider reorganizing relevant code to avoid passing NULL values.
drivers/staging/lustre/lustre/llite/llite_lib.c:991:2-7: WARNING: NULL check before freeing functions like kfree, debugfs_remove, debugfs_remove_recursive or usb_free_urb is not needed. Maybe consider reorganizing relevant code to avoid passing NULL values.
NULL check before some freeing functions is not needed.
Based on checkpatch warning
"kfree(NULL) is safe this check is probably not required"
and kfreeaddr.cocci by Julia Lawall.
drivers/staging/lustre/lustre/lov/lov_request.c:74:3-8: WARNING: NULL check before freeing functions like kfree, debugfs_remove, debugfs_remove_recursive or usb_free_urb is not needed. Maybe consider reorganizing relevant code to avoid passing NULL values.
NULL check before some freeing functions is not needed.
Based on checkpatch warning
"kfree(NULL) is safe this check is probably not required"
and kfreeaddr.cocci by Julia Lawall.
drivers/staging/lustre/lustre/lov/lov_obd.c:574:3-8: WARNING: NULL check before freeing functions like kfree, debugfs_remove, debugfs_remove_recursive or usb_free_urb is not needed. Maybe consider reorganizing relevant code to avoid passing NULL values.
NULL check before some freeing functions is not needed.
Based on checkpatch warning
"kfree(NULL) is safe this check is probably not required"
and kfreeaddr.cocci by Julia Lawall.
Ian Abbott [Tue, 21 Apr 2015 12:18:11 +0000 (13:18 +0100)]
staging: comedi: move COMEDI_SRF_... macros to "comedi_fops.c"
The `COMEDI_SRF_...` macros define flag combinations in the `runflags`
member of `struct comedi_subdevice`. They are only used directly in
"comedi_fops.c", so move them to there.
Signed-off-by: Ian Abbott <abbotti@mev.co.uk> Reviewed-by: H Hartley Sweeten <hsweeten@visionengravers.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Ian Abbott [Tue, 21 Apr 2015 12:18:10 +0000 (13:18 +0100)]
staging: comedi: wrap COMEDI_SRF_FREE_SPRIV usage
The `COMEDI_SRF_FREE_SPRIV` flag in the `runflags` member of `struct
comedi_subdevice` indicates that the memory pointed to by the `private`
member can be automatically freed by the comedi core on subdevice
clean-up (when the low-level comedi device is being "detached"). the
flag doesn't really belong in `runflags`, but it was somewhere
convenient to keep it without having to add a new member to the
structure.
Rather than access the `COMEDI_SRF_FREE_SPRIV` flag directly, use some
new wrapper functions:
* comedi_can_auto_free_spriv(s) - checks whether the subdevice's
`s->private` points to memory that can be freed automatically.
* comedi_set_spriv_auto_free(s) - marks the subdevice as having a
`s->private` that points to memory that can be freed automatically.
Export `comedi_set_spriv_auto_free()` for use by the low-level comedi
driver modules, in particular the "amplc_dio200_common" module.
Signed-off-by: Ian Abbott <abbotti@mev.co.uk> Reviewed-by: H Hartley Sweeten <hsweeten@visionengravers.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
serial2002_setup_subdevices() initializes each subdevice based on the
config read from the attached serial device. Part of this initialization
is to setup the subdevice range_table_list for the non digital subdevices.
The range_table_list is allocated only when a 'range' is passed to the
functions. Each channel of the subdevice then has it's 'range' initialized
and that range is added to the range_table_list.
The logic of this function works but causes Coverity complain about an
Explicit null dereference of the allocated 'range_table_list'. Add a check
for the 'range_table_list' to quiet the Coverity issue.
Reported-by: coverity (CID 1011632) Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com> Reviewed-by: Ian Abbott <abbotti@mev.co.uk> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
ni_write_caldac() checks the boardinfo 'caldac' array to determine what
caldac is used for a given 'addr'. It then calculates the 'bitstring' and
number of 'bits' used to write a value to that caldac address.
After checking the caldac array, if the number of bits is 0 there is no
caldac associated with the address. If this happens we shouldn't try
writing to the non-existing caldac.
Reported-by: coverity (CID 1192116) Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com> Reviewed-by: Ian Abbott <abbotti@mev.co.uk> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
staging: comedi: comedi_bond: fix 'b_mask' calc in bonding_dio_insn_bits()
'b_chans' may be a valud up to 32. 'b_mask' is an unsigned int and a left shift of
more than 31 bits has undefined behavior. Fix the calc so it works correctly with
a 'b_chans' of 32..
Reported-by: coverity (CID 1192244) Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com> Reviewed-by: Ian Abbott <abbotti@mev.co.uk> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
both the misc_deregister(), parport_release() and
parport_unregister_device() is there in the module_exit function also.
detach is called from parport_unregister_driver() and by the time
detach executes misc_deregister(), parport_release() and
parport_unregister_device() has already executed marking
keypad_initialized and lcd.initialized as false. so this part of the
code will never execute.
This driver has drifted away from out-of-tree versions years ago
and the version string does not provide any useful information.
Instead provide the kernel version string to ethtool, so that we get
useful version information e.g. for bug reports.
Signed-off-by: Aaro Koskinen <aaro.koskinen@iki.fi> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Alan [Wed, 8 Apr 2015 19:24:43 +0000 (20:24 +0100)]
iio: example code is buggy
Shock horror, example template code that has never been used in reality is
in fact a hazard. This fixes the obvious bug, probably these kind of
"examples" should be deleted so real (working) examples are followed.
Signed-off-by: Alan Cox <alan@linux.intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Julia Lawall [Sat, 4 Apr 2015 14:59:30 +0000 (16:59 +0200)]
staging: emxx_udc: test returned value
Put NULL test on the result of the previous call instead on one of its
arguments. A simplified version of the semantic match that finds this
problem is as follows (http://coccinelle.lip6.fr/):
Nicolas Iooss [Fri, 17 Apr 2015 09:41:43 +0000 (17:41 +0800)]
Staging: fbtft: fix header guard typo
drivers/staging/fbtft/internal.h header guard tests for
__LINUX_FBTFT__INTERNAL_H but then defines __LINUX_FBTFT_INTERNAL_H
(only 1 underscore) and uses the same name for the #endif comment.
Use the same name everywhere.
Signed-off-by: Nicolas Iooss <nicolas.iooss_linux@m4x.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Benjamin Romer [Tue, 14 Apr 2015 01:16:51 +0000 (21:16 -0400)]
staging: unisys: remove uislib module from staging tree
This module is being removed completely, because it contained wrapper functions
and utility functions that were used in virtpci and virthba. Since these two
drivers are being rewritten to not use these wrappers and utilities, uislib
needs to go.
Signed-off-by: Benjamin Romer <benjamin.romer@unisys.com> Reviewed-by: Don Zickus <dzickus@redhat.com> Reviewed-by: Jes Sorensen <Jes.Sorensen@redhat.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
staging: unisys: visorchipset: Use correct type for dev_no
visorchipset_bus_info.dev_no is only assigned the value of
controlvm_message_packet.create_bus.dev_count, which is a u32. No
point promoting it to a u64.
staging: unisys: visorchipset: Do not use confuse size of long with size of u32
struct visorcipset_device_info defines bus_no and dev_no as u32, while
the deprecated ulong type is 64 bits. Hence avoid promoting the values
to 64 bit just to truncate them again later.
Benjamin Romer [Mon, 6 Apr 2015 14:27:40 +0000 (10:27 -0400)]
staging: unisys: fix kdump support
The s-Par drivers used to be out-of-tree, so they needed a parameter to
let them know we were going into a dump. This patch removes that code
and uses the built-in kernel function instead.
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