kernel/linux.git/drivers/memory/fsl_ifc.c, branch v6.19.11

Get rid of 'remove_new' relic from platform driver struct

2024-12-01T23:12:43+00:00

The continual trickle of small conversion patches is grating on me, and is really not helping. Just get rid of the 'remove_new' member function, which is just an alias for the plain 'remove', and had a comment to that effect: /* * .remove_new() is a relic from a prototype conversion of .remove(). * New drivers are supposed to implement .remove(). Once all drivers are * converted to not use .remove_new any more, it will be dropped. */ This was just a tree-wide 'sed' script that replaced '.remove_new' with '.remove', with some care taken to turn a subsequent tab into two tabs to make things line up. I did do some minimal manual whitespace adjustment for places that used spaces to line things up. Then I just removed the old (sic) .remove_new member function, and this is the end result. No more unnecessary conversion noise. Signed-off-by: Linus Torvalds

memory: fsl_ifc: Convert to platform remove callback returning void

2023-12-19T08:05:16+00:00

The .remove() callback for a platform driver returns an int which makes many driver authors wrongly assume it's possible to do error handling by returning an error code. However the value returned is ignored (apart from emitting a warning) and this typically results in resource leaks. To improve here there is a quest to make the remove callback return void. In the first step of this quest all drivers are converted to .remove_new(), which already returns void. Eventually after all drivers are converted, .remove_new() will be renamed to .remove(). Trivially convert this driver from always returning zero in the remove callback to the void returning variant. Signed-off-by: Uwe Kleine-König Link: https://lore.kernel.org/r/4c90b971e9816320586f4e01e68c95331b8e524a.1702822744.git.u.kleine-koenig@pengutronix.de Signed-off-by: Krzysztof Kozlowski

memory: Explicitly include correct DT includes

2023-07-25T20:09:37+00:00

The DT of_device.h and of_platform.h date back to the separate of_platform_bus_type before it as merged into the regular platform bus. As part of that merge prepping Arm DT support 13 years ago, they "temporarily" include each other. They also include platform_device.h and of.h. As a result, there's a pretty much random mix of those include files used throughout the tree. In order to detangle these headers and replace the implicit includes with struct declarations, users need to explicitly include the correct includes. Signed-off-by: Rob Herring Link: https://lore.kernel.org/r/20230714174717.4059518-1-robh@kernel.org Signed-off-by: Krzysztof Kozlowski

memory: remove MODULE_LICENSE in non-modules

2023-03-09T14:20:50+00:00

Since commit 8b41fc4454e3 ("kbuild: create modules.builtin without Makefile.modbuiltin or tristate.conf"), MODULE_LICENSE declarations are used to identify modules. As a consequence, uses of the macro in non-modules will cause modprobe to misidentify their containing object file as a module when it is not (false positives), and modprobe might succeed rather than failing with a suitable error message. So remove it in the files in this commit, none of which can be built as modules. Signed-off-by: Nick Alcock Suggested-by: Luis Chamberlain Cc: Hitomi Hasegawa Link: https://lore.kernel.org/r/20230308202117.426808-2-nick.alcock@oracle.com Signed-off-by: Krzysztof Kozlowski

memory: fsl_ifc: populate child nodes of buses and mfd devices

2022-04-06T07:39:16+00:00

Commit 3e25f800afb8 ("memory: fsl_ifc: populate child devices without relying on simple-bus") was trying to replace the "simple-bus" compatible with explicit bus populate in the driver. But of_platform_populate() only populates child nodes of ifc without populating child buses and child mfd devices residing under ifc. Change it to of_platform_default_populate() to fix the problem. Fixes: 3e25f800afb8 ("memory: fsl_ifc: populate child devices without relying on simple-bus") Signed-off-by: Li Yang Link: https://lore.kernel.org/r/20220307204118.19093-1-leoyang.li@nxp.com Signed-off-by: Krzysztof Kozlowski

memory: fsl_ifc: populate child devices without relying on simple-bus

2022-01-27T09:41:23+00:00

After we update the binding to not use simple-bus compatible for the controller, we need the driver to populate the child devices explicitly. Signed-off-by: Li Yang Link: https://lore.kernel.org/r/20211116211846.16335-3-leoyang.li@nxp.com Signed-off-by: Krzysztof Kozlowski

memory: fsl_ifc: fix leak of irq and nand_irq in fsl_ifc_ctrl_probe

2021-10-07T18:39:17+00:00

The error handling code of fsl_ifc_ctrl_probe is problematic. When fsl_ifc_ctrl_init fails or request_irq of fsl_ifc_ctrl_dev->irq fails, it forgets to free the irq and nand_irq. Meanwhile, if request_irq of fsl_ifc_ctrl_dev->nand_irq fails, it will still free nand_irq even if the request_irq is not successful. Fix this by refactoring the error handling code. Fixes: d2ae2e20fbdd ("driver/memory:Move Freescale IFC driver to a common driver") Signed-off-by: Dongliang Mu Link: https://lore.kernel.org/r/20210925151434.8170-1-mudongliangabcd@gmail.com Signed-off-by: Krzysztof Kozlowski

memory: fsl_ifc: fix leak of private memory on probe failure

2021-06-10T07:24:37+00:00

On probe error the driver should free the memory allocated for private structure. Fix this by using resource-managed allocation. Fixes: a20cbdeffce2 ("powerpc/fsl: Add support for Integrated Flash Controller") Signed-off-by: Krzysztof Kozlowski Link: https://lore.kernel.org/r/20210527154322.81253-2-krzysztof.kozlowski@canonical.com

memory: fsl_ifc: fix leak of IO mapping on probe failure

2021-06-10T07:24:16+00:00

On probe error the driver should unmap the IO memory. Smatch reports: drivers/memory/fsl_ifc.c:298 fsl_ifc_ctrl_probe() warn: 'fsl_ifc_ctrl_dev->gregs' not released on lines: 298. Fixes: a20cbdeffce2 ("powerpc/fsl: Add support for Integrated Flash Controller") Reported-by: kernel test robot Reported-by: Dan Carpenter Signed-off-by: Krzysztof Kozlowski Link: https://lore.kernel.org/r/20210527154322.81253-1-krzysztof.kozlowski@canonical.com

memory: fsl_ifc: Fix whitespace issues

2020-07-24T14:18:32+00:00

Fix minor whitespace and comment issues. Do not break message strings. No functional changes. Signed-off-by: Krzysztof Kozlowski