diff options
| author | Claudiu Beznea <claudiu.beznea@microchip.com> | 2023-05-30 12:39:06 +0300 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2023-07-27 09:43:54 +0300 |
| commit | 866d4340c6c994768ecfa5da5c96e87996304ea6 (patch) | |
| tree | 49913b543891629873bbb0fb58e55c5ad1d2539a /drivers/clk/clk-versaclock5.c | |
| parent | c67a55f7cc8d767d624235bf1bcd0947e56abe0f (diff) | |
| download | linux-866d4340c6c994768ecfa5da5c96e87996304ea6.tar.xz | |
clk: vc5: check memory returned by kasprintf()
[ Upstream commit 144601f6228de5598f03e693822b60a95c367a17 ]
kasprintf() returns a pointer to dynamically allocated memory.
Pointer could be NULL in case allocation fails. Check pointer validity.
Identified with coccinelle (kmerr.cocci script).
Fixes: f491276a5168 ("clk: vc5: Allow Versaclock driver to support multiple instances")
Signed-off-by: Claudiu Beznea <claudiu.beznea@microchip.com>
Link: https://lore.kernel.org/r/20230530093913.1656095-2-claudiu.beznea@microchip.com
Reviewed-by: Luca Ceresoli <luca.ceresoli@bootlin.com>
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
Diffstat (limited to 'drivers/clk/clk-versaclock5.c')
| -rw-r--r-- | drivers/clk/clk-versaclock5.c | 29 |
1 files changed, 29 insertions, 0 deletions
diff --git a/drivers/clk/clk-versaclock5.c b/drivers/clk/clk-versaclock5.c index eb597ea7bb87..3ddb974da039 100644 --- a/drivers/clk/clk-versaclock5.c +++ b/drivers/clk/clk-versaclock5.c @@ -906,6 +906,11 @@ static int vc5_probe(struct i2c_client *client, const struct i2c_device_id *id) } init.name = kasprintf(GFP_KERNEL, "%pOFn.mux", client->dev.of_node); + if (!init.name) { + ret = -ENOMEM; + goto err_clk; + } + init.ops = &vc5_mux_ops; init.flags = 0; init.parent_names = parent_names; @@ -920,6 +925,10 @@ static int vc5_probe(struct i2c_client *client, const struct i2c_device_id *id) memset(&init, 0, sizeof(init)); init.name = kasprintf(GFP_KERNEL, "%pOFn.dbl", client->dev.of_node); + if (!init.name) { + ret = -ENOMEM; + goto err_clk; + } init.ops = &vc5_dbl_ops; init.flags = CLK_SET_RATE_PARENT; init.parent_names = parent_names; @@ -935,6 +944,10 @@ static int vc5_probe(struct i2c_client *client, const struct i2c_device_id *id) /* Register PFD */ memset(&init, 0, sizeof(init)); init.name = kasprintf(GFP_KERNEL, "%pOFn.pfd", client->dev.of_node); + if (!init.name) { + ret = -ENOMEM; + goto err_clk; + } init.ops = &vc5_pfd_ops; init.flags = CLK_SET_RATE_PARENT; init.parent_names = parent_names; @@ -952,6 +965,10 @@ static int vc5_probe(struct i2c_client *client, const struct i2c_device_id *id) /* Register PLL */ memset(&init, 0, sizeof(init)); init.name = kasprintf(GFP_KERNEL, "%pOFn.pll", client->dev.of_node); + if (!init.name) { + ret = -ENOMEM; + goto err_clk; + } init.ops = &vc5_pll_ops; init.flags = CLK_SET_RATE_PARENT; init.parent_names = parent_names; @@ -971,6 +988,10 @@ static int vc5_probe(struct i2c_client *client, const struct i2c_device_id *id) memset(&init, 0, sizeof(init)); init.name = kasprintf(GFP_KERNEL, "%pOFn.fod%d", client->dev.of_node, idx); + if (!init.name) { + ret = -ENOMEM; + goto err_clk; + } init.ops = &vc5_fod_ops; init.flags = CLK_SET_RATE_PARENT; init.parent_names = parent_names; @@ -989,6 +1010,10 @@ static int vc5_probe(struct i2c_client *client, const struct i2c_device_id *id) memset(&init, 0, sizeof(init)); init.name = kasprintf(GFP_KERNEL, "%pOFn.out0_sel_i2cb", client->dev.of_node); + if (!init.name) { + ret = -ENOMEM; + goto err_clk; + } init.ops = &vc5_clk_out_ops; init.flags = CLK_SET_RATE_PARENT; init.parent_names = parent_names; @@ -1015,6 +1040,10 @@ static int vc5_probe(struct i2c_client *client, const struct i2c_device_id *id) memset(&init, 0, sizeof(init)); init.name = kasprintf(GFP_KERNEL, "%pOFn.out%d", client->dev.of_node, idx + 1); + if (!init.name) { + ret = -ENOMEM; + goto err_clk; + } init.ops = &vc5_clk_out_ops; init.flags = CLK_SET_RATE_PARENT; init.parent_names = parent_names; |