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This is an effort to get rid of all multiplications from allocation
functions in order to prevent integer overflows [1][2].
As the "info" variable is a pointer to "struct sa_info" and this
structure ends in a flexible array:
struct sa_info {
[...]
struct sa_subdev_info subdev[];
};
the preferred way in the kernel is to use the struct_size() helper to
do the arithmetic instead of the calculation "size + size * count" in
the kzalloc() function.
This way, the code is more readable and safer.
This code was detected with the help of Coccinelle, and audited and
modified manually.
Link: https://www.kernel.org/doc/html/latest/process/deprecated.html#open-coded-arithmetic-in-allocator-arguments [1]
Link: https://github.com/KSPP/linux/issues/160 [2]
Signed-off-by: Erick Archer <erick.archer@outlook.com>
Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
Link: https://lore.kernel.org/linux-mtd/AS8PR02MB7237AC633B0D1D2EBD3C40E98B392@AS8PR02MB7237.eurprd02.prod.outlook.com
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| chips | ||
| devices | ||
| hyperbus | ||
| lpddr | ||
| maps | ||
| nand | ||
| parsers | ||
| spi-nor | ||
| tests | ||
| ubi | ||
| ftl.c | ||
| inftlcore.c | ||
| inftlmount.c | ||
| Kconfig | ||
| Makefile | ||
| mtd_blkdevs.c | ||
| mtdblock_ro.c | ||
| mtdblock.c | ||
| mtdchar.c | ||
| mtdconcat.c | ||
| mtdcore.c | ||
| mtdcore.h | ||
| mtdoops.c | ||
| mtdpart.c | ||
| mtdpstore.c | ||
| mtdsuper.c | ||
| mtdswap.c | ||
| nftlcore.c | ||
| nftlmount.c | ||
| rfd_ftl.c | ||
| sm_ftl.c | ||
| sm_ftl.h | ||
| ssfdc.c | ||