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staging: fbtft: Use devm_kcalloc instead of devm_kzalloc 

Replace devm_kzalloc with devm_kcalloc to ensure there are no integer
overflows from the multiplication of a number * sizeof

The following Coccinelle semantic patch was used to make this change:
//<smpl>
@@
expression dev,E1,E2,E3,E4;
@@

- devm_kzalloc(dev,E1*E2*sizeof(E3),E4)
+ devm_kcalloc(dev,E1*E2,sizeof(E3),E4)
//</smpl>

Signed-off-by: Amitoj Kaur Chawla <amitoj1606@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Amitoj Kaur Chawla 2016-02-25 18:50:58 +05:30 committed by Greg Kroah-Hartman
parent 71e03f1038
commit 0c9ab986e2
1 changed files with 5 additions and 2 deletions
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7
drivers/staging/fbtft/fbtft-core.c
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@ -736,8 +736,11 @@ struct fb_info *fbtft_framebuffer_alloc(struct fbtft_display *display,
goto alloc_fail;
if (display->gamma_num && display->gamma_len) {
gamma_curves = devm_kzalloc(dev, display->gamma_num * display->gamma_len * sizeof(gamma_curves[0]),
GFP_KERNEL);
gamma_curves = devm_kcalloc(dev,
display->gamma_num *
display->gamma_len,
sizeof(gamma_curves[0]),
GFP_KERNEL);
if (!gamma_curves)
goto alloc_fail;
}