From: Claudiu Beznea claudiu.beznea@microchip.com
[ Upstream commit bb7d09ddbf361d51eae46f38e7c8a2b85914ea2a ]
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: 19fbbbbcd3a3 ("Add TI CDCE925 I2C controlled clock synthesizer driver") Depends-on: e665f029a283 ("clk: Convert to using %pOFn instead of device_node.name") Signed-off-by: Claudiu Beznea claudiu.beznea@microchip.com Link: https://lore.kernel.org/r/20230530093913.1656095-3-claudiu.beznea@microchip.... Signed-off-by: Stephen Boyd sboyd@kernel.org Signed-off-by: Sasha Levin sashal@kernel.org --- drivers/clk/clk-cdce925.c | 12 ++++++++++++ 1 file changed, 12 insertions(+)
diff --git a/drivers/clk/clk-cdce925.c b/drivers/clk/clk-cdce925.c index 6350682f7e6d2..87890669297d8 100644 --- a/drivers/clk/clk-cdce925.c +++ b/drivers/clk/clk-cdce925.c @@ -701,6 +701,10 @@ static int cdce925_probe(struct i2c_client *client) for (i = 0; i < data->chip_info->num_plls; ++i) { pll_clk_name[i] = kasprintf(GFP_KERNEL, "%pOFn.pll%d", client->dev.of_node, i); + if (!pll_clk_name[i]) { + err = -ENOMEM; + goto error; + } init.name = pll_clk_name[i]; data->pll[i].chip = data; data->pll[i].hw.init = &init; @@ -742,6 +746,10 @@ static int cdce925_probe(struct i2c_client *client) init.num_parents = 1; init.parent_names = &parent_name; /* Mux Y1 to input */ init.name = kasprintf(GFP_KERNEL, "%pOFn.Y1", client->dev.of_node); + if (!init.name) { + err = -ENOMEM; + goto error; + } data->clk[0].chip = data; data->clk[0].hw.init = &init; data->clk[0].index = 0; @@ -760,6 +768,10 @@ static int cdce925_probe(struct i2c_client *client) for (i = 1; i < data->chip_info->num_outputs; ++i) { init.name = kasprintf(GFP_KERNEL, "%pOFn.Y%d", client->dev.of_node, i+1); + if (!init.name) { + err = -ENOMEM; + goto error; + } data->clk[i].chip = data; data->clk[i].hw.init = &init; data->clk[i].index = i;