diff options
Diffstat (limited to 'drivers/staging/echo/echo.c')
| -rw-r--r-- | drivers/staging/echo/echo.c | 36 |
1 files changed, 17 insertions, 19 deletions
diff --git a/drivers/staging/echo/echo.c b/drivers/staging/echo/echo.c index 140f3f0..a2d3078 100644 --- a/drivers/staging/echo/echo.c +++ b/drivers/staging/echo/echo.c @@ -109,8 +109,6 @@ #include <linux/module.h> #include <linux/kernel.h> #include <linux/slab.h> -#define malloc(a) kmalloc((a), GFP_KERNEL) -#define free(a) kfree(a) #include "bit_operations.h" #include "echo.h" @@ -238,27 +236,19 @@ struct oslec_state *oslec_create(int len, int adaption_mode) { struct oslec_state *ec; int i; - int j; - ec = kmalloc(sizeof(*ec), GFP_KERNEL); - if (ec == NULL) - return NULL; - memset(ec, 0, sizeof(*ec)); + ec = kzalloc(sizeof(*ec), GFP_KERNEL); + if (!ec) + return NULL; ec->taps = len; ec->log2taps = top_bit(len); ec->curr_pos = ec->taps - 1; - for (i = 0; i < 2; i++) - { - if ((ec->fir_taps16[i] = (int16_t *) malloc((ec->taps)*sizeof(int16_t))) == NULL) - { - for (j = 0; j < i; j++) - kfree(ec->fir_taps16[j]); - kfree(ec); - return NULL; - } - memset(ec->fir_taps16[i], 0, (ec->taps)*sizeof(int16_t)); + for (i = 0; i < 2; i++) { + ec->fir_taps16[i] = kcalloc(ec->taps, sizeof(int16_t), GFP_KERNEL); + if (!ec->fir_taps16[i]) + goto error_oom; } fir16_create(&ec->fir_state, @@ -275,8 +265,9 @@ struct oslec_state *oslec_create(int len, int adaption_mode) ec->cng_level = 1000; oslec_adaption_mode(ec, adaption_mode); - ec->snapshot = (int16_t*)malloc(ec->taps*sizeof(int16_t)); - memset(ec->snapshot, 0, sizeof(int16_t)*ec->taps); + ec->snapshot = kcalloc(ec->taps, sizeof(int16_t), GFP_KERNEL); + if (!ec->snapshot) + goto error_oom; ec->cond_met = 0; ec->Pstates = 0; @@ -288,6 +279,13 @@ struct oslec_state *oslec_create(int len, int adaption_mode) ec->Lbgn_upper_acc = ec->Lbgn_upper << 13; return ec; + +error_oom: + for (i = 0; i < 2; i++) + kfree(ec->fir_taps16[i]); + + kfree(ec); + return NULL; } EXPORT_SYMBOL_GPL(oslec_create); /*- End of function --------------------------------------------------------*/ |